Reincarnated into the antagonist role of an Omegaverse novel, Tae-seo discovers he's trapped as the villain meant to plague the story's protagonist. When Seo Da-rae schemes to force a heat-inducing drug upon the main character, Tae-seo sabotages the plan by drinking the substance himself—a reckless move to dodge a catastrophic plot development. Assured by his Beta classification that side effects won't affect him significantly, Tae-seo never anticipates the drug's devastating transformation. Against all odds, he manifests as an Omega, seized by an intense heat cycle that spirals beyond his control. "Well, causing a cycle right here is quite audacious. Or are you asking just anyone to pick you up?" Circumstance forces Tae-seo into a shared bed with Kang Se-heon, a man whose motives remain shrouded in mystery. "Don't expect me to take responsibility later. I have no intention of being manipulated by a bloodthirsty person like you." "I don't have any intention of asking you to take responsibility either." Everything shifts when Tae-seo learns the crushing truth: Kang Se-heon is related to the original protagonist as his cousin. As Se-heon pursues him with unsettling persistence and other characters from the source material inexplicably gravitate toward him, Tae-seo realizes his minor antagonist status conceals far deeper significance. "Yoon Tae-seo, you should choose me, even if it's for the sake of the child." How can Tae-seo navigate the consequences of his night with Kang Se-heon and escape the web of the original story untouched?