- This article is about the enemy. For the Cat Unit, see: Aroisu (Collaboration Event Character).
Aroisu (アロイス) is an enemy that only appears in Merc Storia Collaboration Event.
Rather weak on low buffs, but then he becomes a bigger threat on high buff stages in which he can push with a surprising ease.
he tends to come in swarms and create a good pushing DPS so tankers aren't the best choice, insteads use midrange units with area attack like Paris to counter them.
||Time between attacks
||270 (area attack)