Princess 69: Midnight Gymnastics

Fubuki, a schoolboy, finds out that his sister Miku enjoys "night gymnastics." He really wants to help her and bring her back to a normal life.

Fubuki finds out that Tomomi, a famous personality, runs the "night gymnastics" group at the girls' school. He decides to try to become a coach in this group. But to do this, he needs to get there by impersonating a girl.

How will this story end? And what is really behind Tomomi's suggestion?

The series was shot by a different studio, so the drawing style and plot are different from the previous installments. It may appeal to those who love classic hentai, but not all fans of previous seasons.