Kohei decided to stay at his brother's house for a while while looking for a job. His brother-in-law, Saya, who has been thinking about him for a long time, is also there. Kohei starts job hunting the next day, but it doesn't go well. Saya, who has been away from Kohei, who apologizes because she can't stand her awkwardness, feels the pain of her woman and asks him unintentionally. Feeling her affection for Kohei, who clings to her obsessively, Saya, who himself has enjoyed the pleasure, makes a promise with Kohei.
