Summary Sawattemo Ii kana from Kainu Manga
Sawattemo Ii kana summary: After Shirou accidentally witnesses his older brother having sex with his best friend's brother, his world is turned upside down. Masami, on the other hand, seems to be taking this way too calmly while Shirou doesn't even know how to act around his friend anymore, but what goes on between their brothers shouldn't affect their friendship, right? -Baka-updates