Ch 1 - forced by seme
Ch 2 - rape by his owner
Ch 6 - seme was taken by his "sensei" when he was kid not rape, forced)
p 55 - his chief professor raped him
Ch 3,4
Ch 1
Father of sene, the king, raped uke
Ch 2 older brother raped his elder brother
Ch 3
Father of uke planned to have his son kidnapped, but instead he got his son's childdhood friend.
He raped this 10 yo boy
Boy kept having sex with him in Roeder tompeotect uke (later he raped uke, when they first met after few years)
Then father adopted this boy and continued to forcefully having sex
Ch 1
Ch 2 gb
Koishiki Kaikyuu