Student council Shiori Kosaka is a member of the weak biking club.
To increase the number, join and decide to play an active part.
At that time, I saw a student walking behind the school.
After thinking about mistrust, there is a girl who works for exposure play in a hidden place.
Shiori, who first saw exposure play, was upset, but participated in the race as a bicycle member.
Shiori, who won the first race safely,
was attracting men's gaze whether it was because he won or because he had a big breast .
Shiori remembers the throbbing of his chest in the eyes of the men, just like the girl at that time.