Koko Wa Yasashii Niwa
Ch. 2 - Kaoru left the seme's place. Ch. 1 - Kaoru suffered from an abusive single mother and cannot break free from the past. The seme lost his younger brother and is so consumed by grief that he is in denial of the truth. He finds Kaoru passed out on the street (due to some stupid jealous pricks beating him up) and takes him home to nurse him and thinks of him as his dead brother, Mamoru.
Shitto wa ai o Kumoraseru
Ch. 6 - MC broke up with Takase and now went back for him after realizing his stupidity. Ch. 3 - They have started dating.
Fukyagaku-sei no Himawari
Ch. 6.5 - It’s been 3 years since Nao (big brother) died. MC met the lover in his bar during work.
Kanashii Doubutsu