Bokura wa Unmei ja Nai

Overview

"Well... If you were an omega, I'd want you to bear my child..." As a child, Gou believed he was an omega and that he and his childhood friend, Torao, were fated mates. However, upon receiving their secondary gender results at the age of 14, they discovered they were both alphas. This revelation caused a rift in their relationship. Time passed, and now in high school, Gou says some hurtful things to Torao during a quarrel. But for some reason, these circumstances ignite a passion in Torao...? Sadistic black-belly childhood friend (alpha) x masochist who longs to be embraced (alpha). This is an emotional omegaverse story of fighting destiny!

Source: AniList