Nobuko, a literary teacher, lives with a strict mother and hides his desires.One day, a boy Uchiyama who was bullied at school finds himself masturbating while looking at his photograph, and Nobuko decides to play with him.Uchiyama and Nobuko enjoy fireworks without inserting. Nobuko who met Uchiyama who rested school because of bullying eventually finally finds herself after having sex with Uchiyama.