Rin lost her husband in a car accident. One day, while Rin was in mourning after giving up the sake he drank every day due to the sudden news of his death, his father-in-law Yoji came to visit Rin. Yoji, who had been very attached to Rin since her husband was alive, vented all his resentment over the loss of his beloved son. Rin was forced to drink alcohol by Yoji. Yoji knew that when Rin drank alcohol, he would turn into a horny woman. A few minutes later, Rin, who was drunk, was with his father-in-law, whom he hated with all his heart.