I'm pretty sure richard (the purple haired boy)'s father and eirin's dad fought for custody over her and eirin's dad won so like for a short amount of time they were but now not anymore
I think he dislikes her cuz she’s a thorn in his perfect planned out life. He becomes impulsive & childish cuz of her. He doesn’t like not having that control or having the urge to be reckless
Holy crap…
What’s the effect after he take the medicine???