Buru x Karu ~Sensei! Kakugoshite ne~

Four friends Haruka, Natsuo, Akina, and Fuyuki are in the volleyball club at school. They love bloomers more than volleyball! One day a new teacher Daisuke-sensei becomes their new volleyball coach. Afraid that he'll ban their favorite bloomers they come up with a plan. They'll tempt him with their bodies and when he crosses the line they'll have him fired! But their plan has a flaw. Sex feels amazing!