A voluptuous J-cup bust revealed by her competitive swimming swimsuit; swimming club advisor, gang-raped and assaulted by students during a training camp; Aya Ueba (JUR-128)

During summer vacation, Aya, who serves as the swimming club advisor, comes to the training camp. Aya, who came with the students, plans to give it her all for the national championships this year. However, the students are only interested in Aya's ample breasts, neglecting their extracurricular activities and constantly spying on her while she changes clothes and showers. Their intentions don't stop there; they plan to confess their feelings to Aya and have sex with her. That night, at the last minute, Aya notices their intentions and rebukes them. However, the already excited students won't listen to Aya, and in the end, Aya is helplessly surrounded…