On spring break, Daisuke heads to a tropical island. Turns out, his female cousin and a couple of his girl friends are also there. What do you get when you put them all together with a bunch of teenage hormones? A harem. It's always a harem.
A tentacle monster that feeds on girl cum takes over schoolgirl Murasawa Itsuki , driving her to seduce and pleasure other cute schoolgirls. How long will they last before becoming nothing but slaves to the pleasure?