Usually yaoi depicts rape in a seriously too lighthearted way or takes it too far and makes some really violent turn on it. This manga portrays the reactions of the victims in a rather realistic way, that's why, at least for me, it was easier to relate to the main characters.
Really reminded me of my husband! I really love his hairy chest! So fluffy! So I totally understand the feelings in chapter 5. So, if you wonder whether such a fetish actually exists, it does (=・ω・=)
Omamamai this is wholesome