【Stalker-type bad boy α x ordinary office worker β → Ω】 Seiichi Sawaki has lived an ordinary life as a beta. Seiichi and his boss pay a visit to their client Mr. Kujo at his home. Without warning, he is raped by a boy, the second son of the Kujo family, and mutated into an omega. A boy named Mizuki Kujo tramples on Seiichi's peaceful life, telling him that he is Seiichi's bonding pair. Seiichi is frightened and rejects the boy, but as he gradually comes to understand the boy's awkward, single-minded devotion, he begins to develop mixed feelings towards him. This is a story about a man who is unwillingly mutated from a Beta to an Omega, and a boy who changes from a tyrant to a devoted partner. ※This is an English adaptation of the Japanese M/M novel.