Toru Takamura is about to take his university entrance exams and moves in as a boarder at his uncle's house in Tokyo. His cousin Manami, whom he meets again after a long time, has become the most popular girl at school. However, for some reason, Manami has another personality that appears when triggered by the keyword 'Nami'! Nami is a bold and extreme personality completely unlike the refined Manami - and while she is Nami, Manami remembers nothing. How far will this split personality escalate...!? An OVA adaptation of the erotic comedy manga by Shinobu Arimura, serialized in Young King (published by Shonen Gahosha) from 1994 to 1997. A total of 2 works were produced in 1997.