VitaminX Addiction

When the oddly peculiar Mikoto Urabe transfers into Akira Tsubaki's class, he finds that life has thrown him the weirdest curve ball ever. Because while Urabe may be an anti-social loner who sleeps on her desk, carries a pair of scissors in her underwear and breaks out in sudden fits of insane laughter, there's something about her that Tsubaki just can't quite put his finger on. Until he accidentally puts his finger in it, and suddenly the phrase "sharing spit with a girl" takes on an entirely new meaning! Before he can wipe her drool off his face, Tsubaki is mysteriously addicted to Urabe, which isn't half as strange as the fact that she not only finds this normal, but already seems to have plans for her new drooling boyfriend.

The story revolves around Yuuki Kagami, a boy who enrolls in the academy of his dreams as a honors student — and is mistakenly put in the girls' dormitory where boys are prohibited. Faced with the possibility of having to leave the school, Yuuki has to dress up as a girl in the dormitory. On top of things, he ends up rooming with the female teacher Ayana Kakinozaka, who has to watch over him.

Kuribayashi Minami returns to Japan after a long stay in Los Angeles. She enters an upper-class girl's high school "Gokurakuin Joshi High School", so called "Gokujo". She tries to dominate the school with her beauty but her plan is spoiled by the silly and pervert behaviors of her eccentric classmates.

The 11-year-old Marui triplets could not be any more different. The oldest one, Mitsuba, is sadistic and kind of mature for her age. The middle one, Futaba, is perverted and very athletic and has the strength of a full-grown man. The youngest one, Hitoha, is generally very quiet and gentle but when push comes to shove, she might just be the strongest, the most perverted and the most sadistic out of the three. The three are all in the same class, led by the newly graduated teacher Yabe Satoshi. He usually gets pushed around by the girls and, on occasion, abused but the triplets also try to lead him and the new school nurse, the clumsy Kuriyama Aiko, together. However, Yabe had no intention of dating Aiko and the methods the triplets use to accomplish their goal are highly unorthodox...