The film is a clumsy love triangle filled with the longing and waiting of close friends. Hajime-kun is Kou's boyfriend and Arina's best friend, but he realizes more and more that the person he has a crush on is Arina, not Kou. Of course, Arina could easily recognize this, but because she didn't want to break her friendship with Kou, she often silently expressed her feelings for him. When she learned that Kou had to go to the city for a graduation internship next month, Arina secretly made an appointment to meet Hajime to inform her and at the same time she did not forget to give some conditions that if he wanted to have sex with her to his heart's content, he would not be allowed to have sex with Kou from now until the end of the month. even masturbation. From that moment on, he changed completely, he refrained from masturbating and also always refused to have sex every time Kou had an ejaculation. Time has passed, so 1 month has passed and now is the glorious moment to immerse yourself in the clumsy love affairs of the young couple.