By all appearances, Ouka is a calm and composed office lady. But in truth… when she loses at her favorite video games, her temper explodes in terrifying ways! Ashamed of this violent side of herself, she hides it carefully in daily life. One day, however, she happens to catch a glimpse of her admired neighbor, Rui, crying his eyes out. Discovering that the seemingly cool and perfect Rui is actually a total crybaby, Ouka finds herself strangely… turned on. Before they know it, circumstances lead the two to spend time together as “pretend lovers.” But if the world finds out—game over!! A hidden sadist girl × a hidden masochist boy— a secret, sweet-and-twisted fake-dating romantic comedy♡