@phoenixir Some ntr manga are about stolen relatives, though that usually involves mindbreaking a person so hard that they stop caring about their relatives entirely (like a mother abandoning her son for a bunch of gangsters). Kii-chan isn't that bad. Probably.
@Ihcky There's psychological and there's Oyasumi Punpun psychological. I don't think this manga is remotely that level, but we'll see.
I like smoking guy, he seems like the most normal person other than the daughter. @Ihcky I sure hope not, it does give me punpun vibes though I will admit.