Kim Salgu

In a world split into three classes — Sigmas with insane super strength, Epsilons who can heal from almost anything, and regular humans with zero powers — Sigmas live by one deadly rule.They have to drink an Epsilon’s blood on a regular basis… or they lose their minds and go full rabid.He’s always followed that rule. Until he discovered he’s violently allergic to every Epsilon’s blood. Every single one… except hers.And it’s not just her blood that calms the monster inside him. Every taste, every drop, every inch of her body is the only thing that keeps him sane — and the only thing that makes him completely lose control.