Sora o Daite Oyasumi
sooo... fucking my twin brother is wrong, and now he's dead.. ok
Deichuu no Hasu
all incest manga have plot twists because otherwise, who would read it?
The Inheritance of Aroma
"im in love w my cousin/brother and i fuck him when i blindfold him" seme is in love w his cousin/brother and the ukes son told him to blind fold him and fuck him the seme did that and the uke liked it (the son was watching) they did this multiple times They got out of touch because im pretty sure the son died but they got in touch again cause the seme was living w the uke and his wife for some reason they would fuck only when the uke was wearing a blind fold the wife found out and i think she left or smth the uke and seme worked out their problems and got together i think idk
Samenai Yume
kid kills his twin brother because hes jelous of him then coincidentlly meets the author of his favorite book in the end the kid realises he loved his brother and has interdimentionl dreams where he has sex w his brother. and his twin being happy he was killed
Chou to Kumo no Su