Charon's lead vocalist Akira wants to sing a song written by Sunaga, a famous actor but Sunaga requests Akira's body as payment for that song... Sunaga has great musical talent but he has a careless attitude...

From Fantasyshrine: Akira, the charismatic vocalist of CHARON, is totally fascinated with the legendary band, NUN’s vocalist, Hiroya. After NUN disbanded, Hiroya switched to acting until Akira pulled him back...