Paizuri Cheerleader vs. Sakunyuu Ouendan!

Based on the erotic game by Marine.

Shin belongs to a cheer group.

Though he wasn't interested in it, Yuko, his older sister, forced him to join it... As a matter of fact, there are only two members, Shin and Yuko.

On the other hand, a cheerleading club has a lot of members.

One day, Shin accidentally collides with Chieru, a member of the cheerleading club, and she gets injured... In compensation for her injury, he decides to work as a caretaker of the cheerleading club.

But days later, Satsuki, a coach of the cheerleading club, suddenly orders the members, "You should give him a titjob to overcome your sense of shame!" As they are all confused, Satsuki starts giving Shin a titjob...!