Two girls named Nana meet on a train to Tokyo. Nana K. aims to reunite with her boyfriend and Nana O. hopes to make it big in the music business. Despite their differences, the pair hit it off and become roommates.

Cast: Mika Nakashima, Aoi Miyazaki, Kenichi Matsuyama, Ryuhei Matsuda, Tetsuji Tamayama, Tomomi Maruyama