Ai o Kuraeba Higan made

The main character, Izumo Sazanami, is homosexual.
While he's attracted to men, he's averse to women and heterosexuality.
As he grows up and matures, Izumo realizes that he's a minority.
In junior high school, Izumo made a friend; a best friend, even.
Then, naturally, he fell in love with him...

[Translated from NovelGame]