Sin is a rock star. He has an amazingly loud voice with a range of four octaves. His secret is that he has created his voice through a method of vocal cord doping. His voice is now teetering on the edge, due to side effects from the vocal cord doping. Around this time, Sin meets Fūka, who is a street musician. When Fūka sings, her voice is so small. Due to Fūka, Sin looks back upon his past.
Sadawo Abe
Riho Yoshioka
Yudai Chiba
Kumiko Aso
Eiji Kotoge
Yuki Katayama
Yuko Nakamura
Shoko Ikezu
Yoshiyuki Morishita
Ryo Iwamatsu
Eri Fuse
Tetsushi Tanaka
Suzuki Matsuo