In the middle of summer vacation, Aya, a swimming club advisor, came to a training camp with her students. While Aya was determined to win the national championship this year, her students were only interested in her impressive J-cup breasts. Instead of focusing on club activities, they snuck peeks at Aya changing and showering. Their schemes didn't stop there, as they planned to confess their feelings and have sex with her that night. That night, Aya realized their plan at the last moment and scolded them. However, her words fell on deaf ears, and despite her resistance, she was overpowered by the enthusiastic students…