Cut
Sakaguchi is in a sexual relationship with his step father that is abusive, but he enjoys the pain because it helps mask darker memories from his past. He then meets another student who also has a troubled background who may be the person to help him stop his self-inflicted pain. -
Kusari Ni Kiss
The give & take relationship. Hellsing (Dhampir) gives his body to Tayuu, while Tayuu gives Hellsing his body fluid. When Tayuu and Hellsing meet, all they do are to argue, and to have very kinky sex... "I want to touch" "I want to dominate"... Tayuu doesn't understand the reason why he wants more. And Hellsing can't create a "beloved person" because of what he is....
Kokoro O Korosu Houhou
Haruki is Blackmailed into a relationship with his step-brother Hikaru. Haruki starts a relationship with his superior Hanabusa but its destroyed by his stepbrother. Haruki drowns in despair but Hikaru refuses to let go and desperately clings to his now destroyed brother.
Sono Kuchibiru ni Yoru no Tsuyu