"E-chan" Eiichiro Maruo has been living in a regular school since he entered high school, but his rhythm began to go wrong when he got acquainted with the next class, Natsu Takasaki. After school, Natsu chased Natsu to retrieve his lent notes, and it was a tennis club. A-chan begins to record in a notebook after watching Natsu playing tennis seriously. However, the figure was mistaken for a molester and the misunderstanding was solved, but a free trial was given. However, during the preparatory exercise, he goes down due to insufficient physical strength. A-chan falls into self-disgust. On the way back, Natsu asked her, "What is really fun?", But she couldn't answer. A-chan, who first doubts his way of life, unintentionally gets off the bus and starts running in the darkness to his house. (Source: Amazon Prime)