In a school infested with betas, omegas and alphas, Yuki lives his life together with his friends, as an omega he lives in hiding, disguising his condition as much as he can. But everything changes when a dominant alpha new to the school crosses his path. What Yuki didn't expect was that this alpha was no ordinary person, but the King of Hell. Akira, the Demon King, was after something at that school, but meeting this silly, awkward omega boy will bring him incredible discoveries, and perhaps the meeting of a great love.