Is Megumin the same unit as Explosion Mage?

Yes. Before she's evolved, the game refers to her as Megumin (Explosion Mage), so both names point to the same character. Evolving her gives you Explosion Mage (Archdemon).

Can I collect the staff and takedowns in any order?

Yes. The evolution only asks for both items, not a particular sequence, so you can build the takedown count first and buy the staff later, or the other way around. What matters is having both ready when you reach the Evolve area.

How many Gems would the Staff of Explosions cost from the Travelling Merchant?

The Travelling Merchant sells 500 SummerPearls for 250 Gems, so you'd need ten of those bundles to reach 5,000 pearls. That comes to 2,500 Gems for the one staff.

How to Get and Evolve Megumin in Anime Adventures on Roblox

In Anime Adventures on Roblox, Megumin is a Secret unit that no summon banner can give you. You earn her by clearing all 50 Summer Hunt waves for a chance at the Explosion Mage Portal, then clearing that portal's 30 waves and beating its 140 million HP boss for a chance at her. Once she's yours, evolving her into Explosion Mage (Archdemon) takes one Staff of Explosions and 7,500 takedowns.

Item	What you need	Where it comes from
Explosion Mage Portal	All 50 Summer Hunt waves cleared	Chance from a full Summer Hunt clear
Megumin	All 30 portal waves and the 140 million HP boss	Chance from defeating the boss
Staff of Explosions	1	Summer Event Shop near the spawn, 5,000 SummerPearls
Takedowns	7,500	Enemies defeated in Infinite Mode

Clear All 50 Summer Hunt Waves for a Chance at the Explosion Mage Portal

Megumin is tied to the Summer event, so the route starts with Summer Hunt. It's the event's 50-wave mode, and clearing every wave gives you a chance at a Secret Portal. The one you need is the Explosion Mage Portal, so check that the portal you receive has that name.

Start Summer Hunt and clear all 50 waves in a single run.
Check the reward screen for the Explosion Mage Portal.
Repeat the run if the portal doesn't drop.

The portal's drop chance is low, and no exact percentage has been published. Plan on running Summer Hunt more than once. A run you quit early won't earn the chance, so play each one through to wave 50.

Beat the 140 Million HP Boss in the Explosion Mage Portal to Earn Megumin

Once you have the portal, it opens a shorter run of 30 waves that ends with a boss. Megumin's chance comes from defeating that boss.

Anime Adventures gameplay showing the Explosion Mage Portal at wave 30, with enemies and the wave progress bar visible.

Enter the Explosion Mage Portal.
Clear all 30 waves.
Defeat the final boss, which has 140 million HP.

The boss is a long fight, so bring the strongest units you have. Defeating it gives you a chance at Megumin rather than a guaranteed drop, and the exact chance hasn't been confirmed. Don't plan on it working the first time.

Buy the Staff of Explosions With 5,000 SummerPearls

Evolving Megumin takes one Staff of Explosions, and the Summer Event Shop near the spawn sells it for 5,000 SummerPearls. SummerPearls are earned by clearing summer stages, so farming them costs time rather than Gems.

The Anime Adventures Summer Market displays the Staff of Explosions item with its 5,000 SummerPearls price.

If you'd rather skip the farming, the Travelling Merchant sells 500 SummerPearls for 250 Gems. You only need the one staff, so 5,000 SummerPearls covers the full cost either way.

Reach 7,500 Takedowns in Infinite Mode

Takedowns are the enemies you defeat, and the evolution needs 7,500 of them. Infinite Mode is where you build that count, because it keeps enemies coming. Keep defeating enemies there until your takedown counter reaches 7,500.

How to Evolve Megumin Into Explosion Mage (Archdemon) in Anime Adventures

Once you have Megumin, the staff, and 7,500 takedowns, head to the Evolve area. Both requirements need to be in hand when you evolve her, so check your counter and inventory before you go.

The evolved form, Explosion Mage (Archdemon), gains two boosts: