It would be good if the ending was sad. Or they move on and find their own partner. I'm not sure the thing they settled will last forever. I feel bad for the twins not for the seme.
I stopped at third couple. Wait is it ok to call them a couple, He throw Kanda to get gang banged with a reason to help other? Wtf is that. It's too much even tho I love those kind of theme but still this one is so .... And the first couple's story I can't handle it. OMG. The girl literally a bitch
Few days ago I also read a story about abusive and possessive lover, and the one named shun is also the seme. I'm start to doubting a character named shun is innocent like shun in Kimi to Boku.
OMG. I really like it when the seme knotted uke. ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄