The seme and uke are both in a school for Alphas, the seme finds out that his rival and also the guy he admires (the uke) turns out to be an omega, pretending to be an alpha. He promises not to tell in the uke agrees to have sex with him whenever they feel like it and for heats/ruts etc. The seme is already basically inlove but the uke is reluctant because he doesn't want to be omega.
Anti Alpha