Reina begins living with her uncle, who appears to be a respectable businessman but is actually a pervert. Upon discovering that Reina was seeking dates to earn extra money, he takes her to work at a maid café, where she becomes his exclusive maid. There, he subjects her to humiliating situations in front of her coworkers. At night, he sexually abuses her while she sleeps, ignoring her protests. During the day, he forces her into degrading sexual acts. Despite her initial tsundere attitude and resistance, Reina starts to feel internal changes due to this abusive situation.
