[The third installment of the see-through x swimsuit fetish series!] Ena goes to a 3-night, 4-day swimming camp in the lightest swimsuits that are popular at other schools! There should have been no problem for Ena, who only has swimming on her mind! ...But the adolescent boys can't stand the sight of her huge breasts that are almost completely visible! What's more, rumors have started to spread that "sex muscles make you swim faster"... Innocent Ena Ena Koume's H-cup breasts are wet, sticky, and see-through... Big breast fetishism is unstoppable!