This was one of the first H-manga I ever read... I was... Fuck, can't remember really, but I was still shotacon bait x'D that first time reading it was just for the sex, I was just starting to explore my sexuality and TBH later I learn more about sex and healthy relationships with this ero manga...
Mori-sensei is awesome like that, she really go deep with research! Hell, she published a paper with some of her research and I used it as reference material for a project and my teacher love it.