Omg this one is so emotional it fucking hurt reading. I almost gave up, but I’m glad I didn’t. Okay, so basically step brother is in love with his older step brother. Not related at all, and its unrequited. Years pass seme hides his feelings and it fucking sucks. Watching this happened was rough, but it has happy ending. Side story is with another brother who is older and falls in love with his younger brothers best friend (seme), this one was rough too but it had less hurt.
Bokura No Negai