All 32 Bosses in Sailor Piece

Bosses matter in Sailor Piece because players use them to compare boss names, locations, levels, drops, rewards, and fight details. This catalog lists 32 bosses and keeps the important fields in one place: Difficulty, Region, location, description, stats, drops, and Strategy.

Use it to check names, images, requirements, prices, rewards, availability, and other listed details without opening each item one by one. When a value is blank, that detail was not listed clearly in the current data.

Sailor Piece catalog

View

rarity

Other

32 items

Jinwoo

One of the first bosses players will encounter on Sailor Island. Jinwoo has 6M HP and drops Abyss Edge, Dark Ring, and Shadow Heart materials used for sword progression.

drops: Item: Abyss Edge; Type: Crafting Material; Drop Rate: 17.5%; Rarity: Uncommon; Item: Dark Ring; Type: Accessory; Drop Rate: 7%; Rarity: Rare; Item: Shadow Heart; Type: Crafting Material; Drop Rate: 2%; Rarity: Rare; Item: Shadow Monarch Title; Type: Title; Drop Rate: 3%; Rarity: Rare
stats: Level: 0; Hp: 6,000,000; Respawn: ~6.5 minutes; Drops: 4 items; Health: 6,000,000; Sea: Early Islands; Difficulty: Easy; Respawn Time: ~6.5 minutes; Drop Count: 4 items

Alucard

A mid-tier open-world boss on Sailor Island with 20M HP. Alucard drops the Soul Amulet accessory, the Casull weapon, and the Blood Ring.

drops: Item: Soul Amulet; Type: Accessory; Drop Rate: 8%; Rarity: Rare; Item: Casull; Type: Weapon; Drop Rate: 2%; Rarity: Rare; Item: Blood Ring; Type: Accessory; Drop Rate: 2%; Rarity: Rare; Item: Vampire King Title; Type: Title; Drop Rate: 2.5%; Rarity: Rare
stats: Level: 0; Hp: 20,000,000; Respawn: ~5 minutes; Drops: 4 items; Health: 20,000,000; Sea: Early Islands; Difficulty: Medium; Respawn Time: ~5 minutes; Drop Count: 4 items

Yuji

An early-game open-world boss at Shibuya Station with 3.75M HP. Yuji drops Energy Core (25%), Flash Impact (9%), and Divergent Pulse (4%) — key crafting materials for early progression.

drops: Item: Energy Core; Type: Crafting Material; Drop Rate: 25%; Rarity: Uncommon; Item: Flash Impact; Type: Crafting Material; Drop Rate: 9%; Rarity: Rare; Item: Divergent Pulse; Type: Crafting Material; Drop Rate: 4%; Rarity: Rare
stats: Level: 3,000; Hp: 3,750,000; Respawn: ~5 minutes; Drops: 3 items; Health: 3,750,000; Sea: Early Islands; Difficulty: Easy; Respawn Time: ~5 minutes; Drop Count: 3 items

Gojo

An early-to-mid boss at Shibuya Station with 4M HP. Gojo drops the Limitless Key (30%) needed to summon Strongest of Today, plus Void Fragment and Limitless Ring.

drops: Item: Limitless Key; Type: Summoning Item; Drop Rate: 30%; Rarity: Uncommon; Item: Void Fragment; Type: Crafting Material; Drop Rate: 20%; Rarity: Uncommon; Item: Limitless Ring; Type: Accessory; Drop Rate: 8%; Rarity: Rare; Item: Honored One Title; Type: Title; Drop Rate: 5%; Rarity: Rare
stats: Level: 3,000; Hp: 4,000,000; Respawn: ~5 minutes; Drops: 4 items; Health: 4,000,000; Sea: Early Islands; Difficulty: Easy; Respawn Time: ~5 minutes; Drop Count: 4 items

Sukuna

The strongest of the Shibuya Station trio with 5M HP. Sukuna drops the Malevolent Key (30%) needed to summon Strongest in History, plus Cursed Finger and Dismantle Fang.

drops: Item: Malevolent Key; Type: Summoning Item; Drop Rate: 30%; Rarity: Uncommon; Item: Cursed Finger; Type: Crafting Material; Drop Rate: 20%; Rarity: Uncommon; Item: Dismantle Fang; Type: Crafting Material; Drop Rate: 8%; Rarity: Rare; Item: Curse King Title; Type: Title; Drop Rate: 4%; Rarity: Rare
stats: Level: 3,000; Hp: 5,000,000; Respawn: ~5 minutes; Drops: 4 items; Health: 5,000,000; Sea: Early Islands; Difficulty: Medium; Respawn Time: ~5 minutes; Drop Count: 4 items

Escanor

The Boss Rush exclusive boss, encountered during the Boss Rush gamemode (15 waves / 300s time limit / 1 Rush Key per entry / ≥10% HP required to receive loot) on Sailor Island. Escanor's HP scales with Boss Rush difficulty. Drops the Escanor weapon (5.74% chance, no pity), Sun Armor (0.5-1.5%), and The One title (0.85-1.75%). sailorpiecewiki /entries/boss-rush (2026-04-23) lists per-difficulty drop rates: Easy 0.6% / Medium 0.85% / Hard 1.25% / Extreme 1.85%. Boss Rush difficulties: Easy (DR 35% less effective), Medium (DR 70% less, lifesteal 50% less), Hard/Extreme (DR disabled, lifesteal disabled, iFrames 1.5s only). Boss Rush Shop max permanent upgrade cost: 6,625 Rush Coins.

drops: Item: Escanor Weapon; Type: Sword; Drop Rate: 5.74%; Rarity: Rare; Item: The One Title; Type: Title; Drop Rate: 0.85%; Rarity: Very Rare; Item: Sun Armor; Type: Accessory; Drop Rate: 0.5%; Rarity: Very Rare
stats: Level: 0; Hp: 100,000,000; Respawn: Boss Rush only (requires Rush Key); Drops: 3 items; Health: 100,000,000; Sea: Early Islands; Difficulty: Extreme; Respawn Time: Boss Rush only (requires Rush Key); Drop Count: 3 items

Aizen

A powerful mid-to-late boss at Hueco Mundo with 25M HP. Aizen drops the Mirage Pendant accessory (20%), Illusion Prism (8%), Reiatsu Core (3%), and the rare Hogyoku Fragment (1.2%).

drops: Item: Mirage Pendant; Type: Accessory; Drop Rate: 20%; Rarity: Uncommon; Item: Illusion Prism; Type: Crafting Material; Drop Rate: 8%; Rarity: Rare; Item: Reiatsu Core; Type: Crafting Material; Drop Rate: 3%; Rarity: Rare; Item: Hogyoku Fragment; Type: Crafting Material; Drop Rate: 1.2%; Rarity: Very Rare; Item: Manipulator Title; Type: Title; Drop Rate: 2%; Rarity: Rare
stats: Level: 5,000; Hp: 25,000,000; Respawn: ~5 minutes; Drops: 5 items; Health: 25,000,000; Sea: Mid Islands; Difficulty: Hard; Respawn Time: ~5 minutes; Drop Count: 5 items

Saber

A summonable boss on Boss Island requiring 1 Boss Key + 100K Cash + 175 Gems. Saber is one of the more accessible summonable bosses with a 2% chance to drop the Saber sword.

drops: Item: Saber Sword; Type: Sword; Drop Rate: 2%; Rarity: Rare
stats: Level: 1,500; Hp: 2,500,000; Respawn: Summon only; Drops: 1 items; Health: 2,500,000; Sea: Mid Islands; Difficulty: Medium; Respawn Time: Summon only; Drop Count: 1 items

Qin Shi

A summonable boss on Boss Island requiring 3 Boss Keys + 250K Cash + 400 Gems. Qin Shi drops Jade Tablet (6%) and Imperial Seal (2%).

drops: Item: Jade Tablet; Type: Crafting Material; Drop Rate: 6%; Rarity: Rare; Item: Imperial Seal; Type: Crafting Material; Drop Rate: 2%; Rarity: Rare
stats: Level: 0; Hp: 10,000,000; Respawn: Summon only; Drops: 2 items; Health: 10,000,000; Sea: Mid Islands; Difficulty: Hard; Respawn Time: Summon only; Drop Count: 2 items

Ichigo

A 65M HP summonable boss on Boss Island, requiring 5 Boss Keys + 350K Cash + 600 Gems. Ichigo drops Soul Fragment (6%), Spiritual Core (1.75%), and the rare Soul Flame (0.7%).

drops: Item: Soul Fragment; Type: Crafting Material; Drop Rate: 6%; Rarity: Rare; Item: Spiritual Core; Type: Crafting Material; Drop Rate: 1.75%; Rarity: Very Rare; Item: Soul Flame; Type: Crafting Material; Drop Rate: 0.7%; Rarity: Very Rare
stats: Level: 1,500; Hp: 65,000,000; Respawn: Summon only; Drops: 3 items; Health: 65,000,000; Sea: Mid Islands; Difficulty: Hard; Respawn Time: Summon only; Drop Count: 3 items

Shadow

The dungeon boss encountered in the Cid Dungeon (Waves 5/10/15). Shadow's HP scales from 20M to 500M based on difficulty. Drops Umbral Capsule and Void Seed.

drops: Item: Umbral Capsule; Type: Crafting Material; Drop Rate: 12.5%; Rarity: Uncommon; Item: Void Seed; Type: Crafting Material; Drop Rate: 4.5%; Rarity: Rare; Item: Shadow Essence; Type: Crafting Material; Drop Rate: 2%; Rarity: Rare; Item: Atomic Core; Type: Crafting Material; Drop Rate: 0.75%; Rarity: Very Rare
stats: Level: 5,000; Hp: 20,000,000; Respawn: Dungeon only; Drops: 4 items; Health: 20,000,000; Sea: Mid Islands; Difficulty: Hard; Respawn Time: Dungeon only; Drop Count: 4 items

Ragna

An event boss on Christmas Island with 12.5M HP and 5-minute cooldown. Drops Wyrm Band (25%), Black Frost (9%), and Silver Requiem (3.5%).

drops: Item: Wyrm Band; Type: Accessory; Drop Rate: 25%; Rarity: Uncommon; Item: Black Frost; Type: Crafting Material; Drop Rate: 9%; Rarity: Rare; Item: Silver Requiem; Type: Crafting Material; Drop Rate: 3.5%; Rarity: Rare
stats: Level: 0; Hp: 12,500,000; Respawn: ~5 minutes (event cooldown); Drops: 3 items; Health: 12,500,000; Sea: Mid Islands; Difficulty: Medium; Respawn Time: ~5 minutes (event cooldown); Drop Count: 3 items

Cosmic Being

A new Sea 2 World Boss (Cosmic Garou original from One Punch Man). Spawns every 30 minutes (server time, only after previous instance is defeated) at the middle of Punch Island. NO pity system. Drops the Cosmic Being melee spec directly + Cosmic Being damage title (+95%). Team coordination required (40% NPC damage reduction). Adaptive system: every 25% HP triggers one of Harden (+10% DR), Rage (+25% player dmg), Accelerate (+25% movespeed), or Regenerate (+10% HP) — max 3 triggers per fight.

drops: Item: Cosmic Being (Melee Spec); Type: Melee Spec; Drop Rate: 0.525%; Rarity: Very Rare; Item: Cosmic Being Title (+95% Damage); Type: Title; Drop Rate: 1.75%; Rarity: Very Rare; Item: Cosmic Essence; Type: Crafting Material; Drop Rate: 6.53%; Rarity: Rare; Item: Star Mark; Type: Crafting Material; Drop Rate: 3.26%; Rarity: Rare; Item: Galaxy Shard; Type: Crafting Material; Drop Rate: 1.87%; Rarity: Very Rare; Item: Monster Pulse; Type: Crafting Material; Drop Rate: 0.75%; Rarity: Very Rare; Item: Aura Crate; Type: Crate; Drop Rate: 0.1%; Rarity: Very Rare; Item: Cosmetic Crate; Type: Crate; Drop Rate: 0.09%; Rarity: Very Rare; Item: Guild Key; Type: Guild Item; Drop Rate: 0.01%; Rarity: Very Rare
stats: Level: 14,500; Hp: 500,000,000,000; Respawn: 30 minutes after defeat (server time); Drops: 9 items; Health: 500,000,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: 30 minutes after defeat (server time); Drop Count: 9 items

The World

A new Sea 2 boss on Bizarre Island (DIO-inspired from JoJo's Bizarre Adventure Part 3 — The World Stand). Summon-based with 4 difficulties: Normal 5B HP (Medium/Hard/Extreme HP pending wiki confirmation). Summon cost = 1 Dominion Brand (Normal). Drops the Time Tyrant damage title (+92.5%). 35% NPC damage reduction. Full 4-difficulty drop matrix (sailorpiecewiki /entries/the-world-style 2026-04-23): Power Fragment 8.0%/9.0%/9.65%/11.5%, Time Remnant 2.75%/3.1%/3.5%/4.25%, World Outfit 0.65%/0.9%/1.0%/1.15%, World Core 0.60%/0.7%/0.8%/0.9%, Vampire Omen 0.25%/0.3%/0.4%/0.5%, Time Tyrant title 0.6%/0.8%/0.95%/1.2% (pity 175). Requires Primordial Bloodline + Time Tyrant title to access full questline.

drops: Item: Time Tyrant Title (+92.5% Damage); Type: Title; Drop Rate: 0.6%; Rarity: Very Rare; Item: Power Fragment; Type: Crafting Material; Drop Rate: 8%; Rarity: Rare; Item: Time Remnant; Type: Crafting Material; Drop Rate: 2.75%; Rarity: Rare; Item: World Outfit; Type: Accessory; Drop Rate: 0.65%; Rarity: Very Rare; Item: World Core; Type: Crafting Material; Drop Rate: 0.6%; Rarity: Very Rare; Item: Vampire Omen; Type: Crafting Material; Drop Rate: 0.25%; Rarity: Very Rare
stats: Level: 13,500; Hp: 5,000,000,000; Respawn: Summon-based (1 Dominion Brand per Normal summon); Drops: 6 items; Health: 5,000,000,000; Sea: Endgame Islands; Difficulty: Very Hard; Respawn Time: Summon-based (1 Dominion Brand per Normal summon); Drop Count: 6 items

Great Mage

A new Sea 2 Easter Event boss that drops the Ancient Mage damage title (+90%) plus crafting materials for the Great Mage sword. Also drops Ancient Fragments (3.41% — alternate path to Sea 2 unlock besides map farming). 35% NPC damage reduction. 4-difficulty summon costs (sailorpiecewiki /entries/great-mage-style 2026-04-23): Normal 1 Easter Key / Medium 2 / Hard 3 / Extreme 4. Ancient Mage title 4-difficulty drop rates: Normal 0.65% / Medium 0.85% / Hard 1% / Extreme 1.25% (pity 160).

drops: Item: Ancient Mage Title (+90% Damage); Type: Title; Drop Rate: 0.65%; Rarity: Very Rare; Item: Spell Echo; Type: Crafting Material; Drop Rate: 9.87%; Rarity: Rare; Item: Ancient Fragment; Type: Crafting Material; Drop Rate: 3.41%; Rarity: Rare; Item: Mage Outfit; Type: Accessory; Drop Rate: 0.9%; Rarity: Very Rare; Item: Magic Essence; Type: Crafting Material; Drop Rate: 0.78%; Rarity: Very Rare; Item: Mana Core; Type: Crafting Material; Drop Rate: 0.33%; Rarity: Very Rare
stats: Level: 13,000; Hp: 3,500,000,000; Drops: 6 items; Health: 3,500,000,000; Sea: Endgame Islands; Difficulty: Very Hard; Respawn Time: Summon-based — Normal 1 Easter Key / Medium 2 / Hard 3 / Extreme 4 (sailorpiecewiki 2026-04-23). Easter Event until 2026-04-22 11:16 AM PT; Drop Count: 6 items

Kraken

Beast

A new Sea Creature (Sea Beast) introduced in Sea 2. Spawn requires 500k+ bounty + 200-600 studs from islands. Bounty affects spawn rate — higher Bounty = faster spawns (max Bounty: 50M post-Sea 2). Server cap: 1 Kraken + 1 Sea Serpent simultaneously. Drops materials for Dragon Goddess sword and Dragon Queen title (+97.5% damage). No pity — Luck builds recommended. Average per-kill yield (sailorpiecewiki /entries/bosses-guide 2026-04-23): ~15 Bloodline Stone + ~25 Clan Reroll.

drops: Item: Dragon Queen Title (+97.5% Damage); Type: Title; Drop Rate: 0.85%; Rarity: Very Rare; Item: Dragon Goddess Sword Crafting Materials; Type: Crafting Material; Drop Rate: 0.465%; Rarity: Very Rare; Item: Bloodline Stone (avg 15/kill); Type: Crafting Material; Drop Rate: 0%; Rarity: Very Rare; Item: Clan Reroll (avg 25/kill); Type: Crafting Material; Drop Rate: 0%; Rarity: Very Rare
stats: Level: 13,000; Hp: 1,250,000,000,000; Respawn: Bounty-dependent (500k+ bounty required, server cap 1 Kraken); Drops: 4 items; Health: 1,250,000,000,000; Sea: Endgame Islands; Difficulty: Very Hard; Respawn Time: Bounty-dependent (500k+ bounty required, server cap 1 Kraken); Drop Count: 4 items

Sea Serpent

Beast

A new Sea Creature (Sea Beast) introduced in Sea 2. Spawn requires 500k+ bounty + 200-600 studs from islands. Spawns scale with player Bounty (max: 50M post-Sea 2). Server cap: 1 Sea Serpent + 1 Kraken simultaneously. Shares drop pool with Kraken: Dragon Queen title and Dragon Goddess sword materials. No pity — high-Luck builds strongly recommended.

drops: Item: Dragon Queen Title (+97.5% Damage); Type: Title; Drop Rate: 0.85%; Rarity: Very Rare; Item: Dragon Goddess Sword Crafting Materials; Type: Crafting Material; Drop Rate: 0.4%; Rarity: Very Rare
stats: Level: 13,000; Hp: 625,000,000,000; Respawn: Bounty-dependent (500k+ bounty required, server cap 1 Sea Serpent); Drops: 2 items; Health: 625,000,000,000; Sea: Endgame Islands; Difficulty: Very Hard; Respawn Time: Bounty-dependent (500k+ bounty required, server cap 1 Sea Serpent); Drop Count: 2 items

Madoka

The hardest open-world boss with 250M HP, located on Valentine Island. Madoka guarantees a Heart drop (100%) and also drops Divine Fragment (6%) and Sacred Bow (4%). Requires a coordinated group.

drops: Item: Heart; Type: Crafting Material; Drop Rate: 100%; Rarity: Common; Item: Divine Fragment; Type: Crafting Material; Drop Rate: 6%; Rarity: Rare; Item: Sacred Bow; Type: Weapon; Drop Rate: 4%; Rarity: Rare; Item: Star Maiden Title; Type: Title; Drop Rate: 1.2%; Rarity: Very Rare
stats: Level: 0; Hp: 250,000,000; Respawn: ~6.5 minutes; Drops: 4 items; Health: 250,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: ~6.5 minutes; Drop Count: 4 items

Gilgamesh

A 300M+ HP endgame summonable boss on Boss Island, requiring 1 Divine Grail + 500K Cash + 500 Gems. Drops Throne Remnant (11.5%), Ancient Shard (4.5%), Golden Essence (1.5%), and Phantasm Core (0.5%).

drops: Item: Throne Remnant; Type: Crafting Material; Drop Rate: 11.5%; Rarity: Uncommon; Item: Ancient Shard; Type: Crafting Material; Drop Rate: 4.5%; Rarity: Rare; Item: Golden Essence; Type: Crafting Material; Drop Rate: 1.5%; Rarity: Very Rare; Item: Phantasm Core; Type: Crafting Material; Drop Rate: 0.5%; Rarity: Very Rare
stats: Level: 0; Hp: 300,000,000; Respawn: Summon only; Drops: 4 items; Health: 300,000,000; Sea: Endgame Islands; Difficulty: Very Hard; Respawn Time: Summon only; Drop Count: 4 items

Strongest of Today

A powerful summonable boss on Shinjuku Island (125M+ HP), summoned with a Limitless Key from Gojo. Drops Reversal Pulse (15%), Six Eye (6%), Blue Singularity (2%), and Infinity Essence (0.65%).

drops: Item: Reversal Pulse; Type: Crafting Material; Drop Rate: 15%; Rarity: Uncommon; Item: Six Eye; Type: Crafting Material; Drop Rate: 6%; Rarity: Rare; Item: Blue Singularity; Type: Crafting Material; Drop Rate: 2%; Rarity: Rare; Item: Infinity Essence; Type: Crafting Material; Drop Rate: 0.65%; Rarity: Very Rare
stats: Level: 6,250; Hp: 125,000,000; Respawn: Summon only; Drops: 4 items; Health: 125,000,000; Sea: Endgame Islands; Difficulty: Very Hard; Respawn Time: Summon only; Drop Count: 4 items

Strongest in History

The hardest summonable boss on Shinjuku Island (150M+ HP), summoned with a Malevolent Key from Sukuna. Drops Awakened Cursed Finger (15%), Vessel Ring (6%), Malevolent Soul (2%), and Cursed Flesh (0.65%).

drops: Item: Awakened Cursed Finger; Type: Crafting Material; Drop Rate: 15%; Rarity: Uncommon; Item: Vessel Ring; Type: Accessory; Drop Rate: 6%; Rarity: Rare; Item: Malevolent Soul; Type: Crafting Material; Drop Rate: 2%; Rarity: Rare; Item: Cursed Flesh; Type: Crafting Material; Drop Rate: 0.65%; Rarity: Very Rare
stats: Level: 6,250; Hp: 150,000,000; Respawn: Summon only; Drops: 4 items; Health: 150,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: Summon only; Drop Count: 4 items

Rimuru

A summonable slime boss on Slime Island (200M+ HP), requiring 1 Slime Key. Drops Sage Pulse (13.5%) and Tempest Seal (5.5%).

drops: Item: Sage Pulse; Type: Crafting Material; Drop Rate: 13.5%; Rarity: Uncommon; Item: Tempest Seal; Type: Crafting Material; Drop Rate: 5.5%; Rarity: Rare
stats: Level: 8,000; Hp: 200,000,000; Respawn: Summon only; Drops: 2 items; Health: 200,000,000; Sea: Endgame Islands; Difficulty: Very Hard; Respawn Time: Summon only; Drop Count: 2 items

Anos

A 350M+ HP endgame summonable boss on Academy Island, requiring 1 Calamity Seal. Anos drops Demonic Fragment (11.5%) and Demonic Shard (4.5%).

drops: Item: Demonic Fragment; Type: Crafting Material; Drop Rate: 11.5%; Rarity: Uncommon; Item: Demonic Shard; Type: Crafting Material; Drop Rate: 4.5%; Rarity: Rare
stats: Level: 9,000; Hp: 350,000,000; Respawn: Summon only; Drops: 2 items; Health: 350,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: Summon only; Drop Count: 2 items

Shadow Monarch

The ultimate dungeon boss in the Double Dungeon with 750M HP. Drops Monarch Core (6.75%), Monarch Essence (2.75%), Shadow Crystal, and the rare Kamish Dagger weapon.

drops: Item: Monarch Core; Type: Crafting Material; Drop Rate: 6.75%; Rarity: Rare; Item: Monarch Essence; Type: Crafting Material; Drop Rate: 2.75%; Rarity: Rare; Item: Shadow Crystal; Type: Crafting Material; Drop Rate: 0.5%; Rarity: Very Rare; Item: Kamish Dagger; Type: Weapon; Drop Rate: 0.75%; Rarity: Very Rare
stats: Level: 5,000; Hp: 750,000,000; Respawn: Dungeon only; Drops: 4 items; Health: 750,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: Dungeon only; Drop Count: 4 items

True Aizen

The strongest summonable boss on Soul Society with 850M HP (Normal difficulty). Summoned via Chrysalis Sigils farmed from Quincy NPCs on Soul Society. Drops the Transcendent Being title (+72.5% DMG) — the best damage title in the game — along with Evolution Fragment, Transcendent Core, Divinity Essence, Fusion Ring, and the Manipulator Outfit accessory.

drops: Item: Transcendent Being Title; Type: Title; Drop Rate: 0.75%; Rarity: Very Rare; Item: Evolution Fragment; Type: Crafting Material; Drop Rate: 15%; Rarity: Uncommon; Item: Transcendent Core; Type: Crafting Material; Drop Rate: 6%; Rarity: Rare; Item: Divinity Essence; Type: Crafting Material; Drop Rate: 2%; Rarity: Rare; Item: Fusion Ring; Type: Accessory; Drop Rate: 1%; Rarity: Very Rare; Item: Manipulator Outfit; Type: Accessory; Drop Rate: 0.75%; Rarity: Very Rare
stats: Level: 5,000; Hp: 850,000,000; Respawn: Summon only; Drops: 6 items; Health: 850,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: Summon only; Drop Count: 6 items

Yamato

A powerful summonable boss on Judgement Island with 850M HP (Normal difficulty). Drops materials needed for the Yamato sword — Azure Heart (0.5%), Yamato Essence (2.5%), Frozen Will (4.25%), Silent Storm — plus the Blade Sovereign title (1%) and the Imperial Outfit accessory.

drops: Item: Blade Sovereign Title; Type: Title; Drop Rate: 1%; Rarity: Very Rare; Item: Azure Heart; Type: Crafting Material; Drop Rate: 0.5%; Rarity: Very Rare; Item: Yamato Essence; Type: Crafting Material; Drop Rate: 2.5%; Rarity: Rare; Item: Frozen Will; Type: Crafting Material; Drop Rate: 4.25%; Rarity: Rare; Item: Silent Storm; Type: Crafting Material; Drop Rate: 3%; Rarity: Rare; Item: Imperial Outfit; Type: Accessory; Drop Rate: 0.9%; Rarity: Very Rare
stats: Level: 5,000; Hp: 850,000,000; Respawn: Summon only; Drops: 6 items; Health: 850,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: Summon only; Drop Count: 6 items

Blessed Maiden

A summonable boss on Boss Island with 650M HP (Normal difficulty). Summoned via Tempest Relics + Cash + Gems at the Boss Summoner NPC. Normal: 1 Tempest Relic + 600K Cash + 600 Gems. Drops the Astral Empress title (+70% DMG), Aero Core, Gale Essence, and the Maiden Outfit accessory.

drops: Item: Astral Empress Title; Type: Title; Drop Rate: 0.8%; Rarity: Very Rare; Item: Aero Core; Type: Crafting Material; Drop Rate: 1.6%; Rarity: Very Rare; Item: Gale Essence; Type: Crafting Material; Drop Rate: 3%; Rarity: Rare; Item: Tide Remnants; Type: Crafting Material; Drop Rate: 5%; Rarity: Rare; Item: Maiden Outfit; Type: Accessory; Drop Rate: 0.8%; Rarity: Very Rare
stats: Level: 0; Hp: 650,000,000; Respawn: Summon only; Drops: 5 items; Health: 650,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: Summon only; Drop Count: 5 items

Saber Alter

A powerful boss added in the Alter Update (March 16, 2026). Summoned on Boss Island using Dark Grails + Money + Gems. Three difficulty levels: Normal (1 Grail), Hard (2 Grails), Extreme (4 Grails). Must deal at least 10% of boss HP to receive rewards. Drops Corrupt Crown and Corruption materials for Saber Alter weapon crafting.

drops: Item: Morgan Remnant; Type: Crafting Material; Drop Rate: 33.93%; Rarity: Uncommon; Item: Alter Essence; Type: Crafting Material; Drop Rate: 12.25%; Rarity: Uncommon; Item: Alter Armor; Type: Accessory; Drop Rate: 3.2%; Rarity: Rare; Item: Corruption Core; Type: Crafting Material; Drop Rate: 3.02%; Rarity: Rare; Item: Corrupt Crown; Type: Accessory; Drop Rate: 1.32%; Rarity: Very Rare; Item: Corrupt Tyrant (Title); Type: Title; Drop Rate: 1%; Rarity: Very Rare
stats: Level: 0; Hp: 750,000,000; Respawn: Summoned (not timed spawn) — requires Dark Grails + currency; Drops: 6 items; Health: 750,000,000; Sea: Endgame Islands; Difficulty: Hard; Respawn Time: Summoned (not timed spawn) — requires Dark Grails + currency; Drop Count: 6 items

Kokushibo (Moon Slayer Boss)

Kokushibo is the key endgame boss for unlocking the Moon Slayer fighting style. Summoned on Boss Island using 1x Upper Seal + 700,000 Money + 700 Gems. Upper Seals drop from Shinjuku, Lawless, and Ninja Island enemies. Drops Moon Crest (0.3% — required for Moon Slayer unlock), Demon Remnant (8.91%), Lunar Essence (3.08%), and Crescent Shard (0.70%). Added in the Moon Update (March 31, 2026). Level 12,000+ recommended.

drops: Item: Demon Remnant; Type: Crafting Material; Drop Rate: 8.91%; Rarity: Rare; Item: Lunar Essence; Type: Crafting Material; Drop Rate: 3.08%; Rarity: Rare; Item: Crescent Shard; Type: Crafting Material; Drop Rate: 0.7%; Rarity: Very Rare; Item: Moon Crest; Type: Crafting Material; Drop Rate: 0.3%; Rarity: Very Rare
stats: Level: 12,000; Hp: 1,250,000,000; Respawn: Summon only (1x Upper Seal + 700,000 Money + 700 Gems); Drops: 4 items; Health: 1,250,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: Summon only (1x Upper Seal + 700,000 Money + 700 Gems); Drop Count: 4 items

Strongest Shinobi

A 2 billion HP open-world boss on Ninja Island, added in the Massive Update (March 25, 2026). Based on Madara Uchiha. Spawns automatically every 6 minutes at the far end of Ninja Island (opposite the teleport spawn point). Drops the Battlefield Warlord title (1.5%, 100-kill pity) — required for the Strongest Shinobi fighting style unlock chain. Level 12,000+ recommended. Source: allthings.how + progameguides.com (2026-03-27).

drops: Item: Power Remnant; Type: Crafting Material; Drop Rate: 3.69%; Rarity: Rare; Item: Battle Sigil; Type: Crafting Material; Drop Rate: 2.12%; Rarity: Rare; Item: Eternal Core; Type: Crafting Material; Drop Rate: 1.01%; Rarity: Very Rare; Item: Battlefield Warlord Title; Type: Title; Drop Rate: 1.5%; Rarity: Very Rare; Item: Path Fragment; Type: Crafting Material; Drop Rate: 0.4%; Rarity: Very Rare
stats: Level: 12,000; Hp: 2,000,000,000; Respawn: ~6 minutes (open world auto-spawn); Drops: 5 items; Health: 2,000,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: ~6 minutes (open world auto-spawn); Drop Count: 5 items

Atomic Boss (Cid)

A 2 billion HP summonable boss on Lawless Island, added in the Massive Update (March 25, 2026). Summoned at the Atomic Boss Summoner NPC using Abyss Sigils (Normal=1, Medium=2, Hard=3, Extreme=4). Drops the S+ tier Atomic Outfit accessory (1.23%) and materials needed to purchase the Atomic Sword (Cid V2) from the Atomic Seller NPC. Abyss Sigils drop from Arena Fighter mobs on Lawless Island and Ninja mobs on Ninja Island. Level 12,000+ recommended. Source: allthings.how + beebom.com (2026-03-27).

drops: Item: Magic Shard; Type: Crafting Material; Drop Rate: 11.5%; Rarity: Uncommon; Item: Shadow Remnant; Type: Crafting Material; Drop Rate: 4.01%; Rarity: Rare; Item: Atomic Outfit; Type: Accessory; Drop Rate: 1.23%; Rarity: Very Rare; Item: Eminence Essence; Type: Crafting Material; Drop Rate: 1.02%; Rarity: Very Rare; Item: Eminence Incarnate Title; Type: Title; Drop Rate: 0.75%; Rarity: Very Rare; Item: Atomic Omen; Type: Crafting Material; Drop Rate: 0.54%; Rarity: Very Rare
stats: Level: 12,000; Hp: 2,000,000,000; Respawn: Summon only (Abyss Sigils required); Drops: 6 items; Health: 2,000,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: Summon only (Abyss Sigils required); Drop Count: 6 items

Frost Boss

A summonable endgame boss on Boss Island (right of the hand statue, Ice Queen Seller NPC), added in the Ice Update (April 8, 2026). 4 difficulties — Normal 1.65B / Medium 5B / Hard 13.5B / Extreme 32.5B HP. Summon costs: Normal 1 Frost Relic + $750k + 750 Gems / Medium 2 Frost Relics + $1M + 1000 Gems / Hard 3 Frost Relics + $1.25M + 1250 Gems / Extreme 4 Frost Relics + $1M + 1000 Gems. Drops materials for the Ice Queen sword crafting chain and the Frost Empress Title (+87.5% Damage, pity 155 — required for Ice Queen sword). Frost Relics also drop from ALL NPCs in game. Source: Beebom (2026-04-08) + Discord #update-logs (Alx, 2026-04-08, gold standard) + sailorpiecewiki /entries/ice-queen (2026-04-23).

drops: Item: Battle Shard; Type: Crafting Material; Drop Rate: 16.2%; Rarity: Uncommon; Item: Glacier Remnant; Type: Crafting Material; Drop Rate: 5.37%; Rarity: Rare; Item: Icen Queen Outfit; Type: Accessory; Drop Rate: 1.42%; Rarity: Very Rare; Item: Frozen Brand; Type: Crafting Material; Drop Rate: 1.21%; Rarity: Very Rare; Item: Frost Empress Title (+87.5% Damage); Type: Title; Drop Rate: 0.65%; Rarity: Very Rare; Item: Ice Core; Type: Crafting Material; Drop Rate: 0.53%; Rarity: Very Rare
stats: Level: 0; Hp: 1,650,000,000; Drops: 6 items; Health: 1,650,000,000; Sea: Endgame Islands; Difficulty: Extreme; Respawn Time: Summon only — Normal: 1 Frost Relic + $750k + 750 Gems / Medium: 2 + $1M + 1000 / Hard: 3 + $1.25M + 1250 / Extreme: 4 + $1M + 1000; Drop Count: 6 items

Start with the grouped sections, then compare the fields that matter for this collection: Difficulty, Region, location, description, stats, drops, and Strategy. Images help identify entries when the game uses icons or thumbnails, while the list view is better for scanning many rows quickly. Missing values are left empty instead of guessed.

FAQ

What is included in this Sailor Piece bosses catalog?

It includes every bosses entry currently collected for Sailor Piece, with the item fields that are available in the dataset.

Why are some values blank?

Blank values mean that detail was not listed clearly for that entry. We keep the item visible and avoid filling missing stats with guesses.

How should I use this page?

Use the card view for quick visual browsing and the list view when you want to compare Difficulty, Region, location, description, stats, drops, and Strategy across many entries.