One day, ordinary office worker Kaoru Kusakabe (28) dies in an accident and is reincarnated into the world of a BL Omegaverse novel. Kaoru is reincarnated as Chris, an Ω (Omega) and the concubine of Allen, the α (Alpha) King. However, in the story, Chris has a child with Allen, but since his son-in-law has already had a child, he and his son are destined to be assassinated... In order to avoid his own death, he plans to disguise himself as a defective Omega who cannot give birth and live the life of a cold-hearted husband, but Allen begins to dote on Chris, whose personality has changed...