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 step-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 acci