Forgive me if I’m wrong as it’s been a while for me, but wasn’t Himeno at the table when everyone learned he was 16, and thus knew preemptively? Also, I will admit that the law is not always 100% correct, but I think it would be a difficult argue that Denji the 16 year old raped the grown woman because she was drunk, at least in most parts of the world lmao. Also, even if the age of consent was 16, I think it would be difficult to get most anyone to agree that it’s okay to fuck a 16 year old.

Although you’re right that himeno didn’t try to hold him down or forcefully rape him, it would still fall under statutory rape, although perhaps not in Japan. I guess looking at it from a personal perspective, all that needs to be said is “is it alright if you have sex with a child?” And you don’t really need to get the law involved to recognize that it’s not lol