After living in the isolated islands of the Caribbean for most of her life, Kajika Kugami transfers to a Japanese middle school. Her best friend is Yui Yamate and she lives a glorified school life. One day at school, Yui bumps into a gang girl and the girls argue. When Yui and Kajika are on their way home, the gang surrounds them. Kajika`s bodyguard, Toranosuke Haga, came to the rescue them. Kajika wants to protect Yui, so she decides to go with the gangsters...and gets in their car. The situation starts to get dangerous when Kajika`s trusted friend Lee-Leng Huang shows up.