Erina
Age: 16
School: Yougetsu Private Academy
Year: 2
Erina runs things as Student Council President, which tracks given her no-nonsense personality. When she transforms, she becomes Tail Yellow—a version of herself that's noticeably more mature-looking and curvier than her everyday appearance. Her weapon is the Vortex Blaster, a gun powered by lightning.
She's got some interesting quirks that don't exactly make it into official council bios. She's secretly into masochism and exhibitionism, and she gets visibly flustered whenever Souji says her name—something fans definitely pick up on. It's a running point of tension between the two that adds to their dynamic.
Unlike Souji and Aika, whose transformed states don't change their apparent age as drastically, Erina's twin-tail form gives her a completely different vibe—older, more developed, almost like a different person entirely.
Content compiled by AnimeList.moe from publicly available sources.
