The Miku which acts as Instructor of the swimming by a certain high quality gym. Be leadership and good looks, and be her who is popular, but one day the Sex with the boy student in the poolside is witnessed by a co-worker. The man who was jealous of the popularity by the gym while sending thought to Miku changes sadness and vexation of the So into carnal desires, and commit all kinds of the Torture & Rape in Miku with students by a holy Sports gym!
