Ririka, a school girl, has transferred to a school where her uncle is the chief of education. At the invitation of a classmate, Rika becomes the manager of the gymnastics club, but she feels sexually aroused in the masculinity that is different from the all-girls school she has attended so far. While sniffing the smell of a male student's gym clothes that I took out on impulse, I became ecstatic and indulged in masturbation in the toilet.
