In a novel, an unknown extra is forced to teach manners to a tyrant who turns into a tyrant. The protagonist, Rivier, tries to prevent a tragic relationship with the tyrant, but is beaten in the end. The male lead's personality is strange, and he tells Rivier that it's not okay to kiss someone without their permission. Rivier asks if he's saying there's no problem if they give him permission, and Croft's heart pounded in trepidation. He jabs Croft's abdomen, revealing a hard lump. Quick thinking is the only means of survival in this situation.