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.
as Sin
as Fūka Ashitaba
as Sakaguchi
as Female Doctor
as Jimetsu
as Seiko Inō
as Kinomoto
as Sin's Mother
as Muryo Record Company CEO
as Devil Woman
as CEO
as Uncle Zappa
as Happy Soba Man / Pizza Delivery Man
as Park
