When Setsu's grandfather died, so did Setsu's sound"—his unique creative spark. Grieving, he goes to Tokyo to find himself...but manages to become totally, literally lost on his first day. Only a chance meeting with Yuna—aka Yuka, the hostess—saves him from being robbed. At first glance their lives seem totally different, but they're both striving for their dreams—hers, of being an actress, and his, of developing his talent with the shamisen—and it could just be that life in the raucous, unfeeling urban sprawl of Tokyo could just be what binds their fates together..."
After being asked to join a music agency, Setsu realized that he wanted to compose a unique improvisational piece and play it in front of as many people as possible. Setsu forms a new unit with Kaji, Arakawa, and Soichi Tanuma’s little sister, Mai. The four of them record a new album that will breathe new life into the music world!! However, with his impressive abilities and Umeko’s production, Setsu’s older brother, Wakana, has already caused a huge sensation of his own…?!