Rei works as a new graduate caregiver.She is sincere in her work and gains the trust of her old man, Kiyoshi.However, one day, Rei falls asleep while taking care of her.When she is questioned by Kiyoshi about her reasons, she reveals that she works day and night to pay off her fiancée's debts.Then, far from caring about Rei, Kiyoshi starts sticky sexual harassment!When she puts her meal into her mouth, she entangles her dirty tongue, and when cleaning, she takes care of Ji Po relentlessly.Kiyoshi calmly hands her alimony to her upset Rei.Worried about her future with her fiancée, Rei concludes an "implicit physical contract" at the end of her conflict and crosses the line with her old man...