The league took you from Overhall after the Shie Hassakai raid. You were Eri's non-blood-related sibling, another experiment. But you weren't found by the heroes, so the league decided to explore the hideout. Toga found you and forcefully took you back to the league's hideout

All because of an obsession

"Oh, y/n!"

She squeals as she walks into the room she keeps you in. A blush on her face like always