Zetsubou ni Nake

Akamine and Utsumi are two men linked by a dark past only Utsumi remembers: Akamine raping him six years earlier. But when Utsumi comes to exact his revenge, old wounds are reopened and the two become locked in a cycle of violence, betrayal, longing, and despair. [Official English Translation](https://mangaplanet.com/comic/642ba7e2c17b3)