This chapter was really touching. I don't usually read genderswap mangas but I'll give this one a try. I wished that the best friend was actually trans instead of some disease bullshit. It would've been really progressive and helped normalized trans people in japan.
I don't like how you're trying to excuse the mother's actions. Abuse is abuse no matter how you look at it. Her intentions is ultimately hurting the child. Also yes, you may had it worse and while you say it had a positive effect on you, that's not true for everyone. I was beaten the same way as...
Wait. If he just wanted to get to know her better, then why form a contract with her? And why the fuck would she let him control her after literally just meeting him a few minutes ago. My expectations were low but god damn.