Agh, Come on. Even if you are starving for love, you should not allow anyone's p*nis to enter your an*s. As if there's nothing else but sex, At least if you really want to do it...don't do it with random people (눈‸눈). This story seems to vilify children whose family backgrounds are broken ತ_ʖತ.
Such a dumbass plot. So the father is actually his uncle, who loved his own sister. He had issues with the brothers (who didn't know they are brothers) fucking, but he has no issues fucking his own nephew? Such a hypocrite. Also kind of weird how the Seme so easily accepted that the Uke fuck with who he thought to be the father. The memory loss is also stupid, so many stories have it where it's just making it suck more.