She was probably troubled by domestic violence from her father. During the divorce mediation between her parents, while they were fighting for custody, she was left at a relative's house. However, in the home of her father with his quirks and older male siblings, Kana was thrown into the den of beasts as bait from the start. Her brothers forced her to perform sexual acts, and if she resisted, they threatened to send her back to her father who would beat her up. And then finally…!
