Astral Project

Astral Project: Tsuki no Hikari (Astral Project 月の光) is a manga written by Marginal and illustrated by Takeya Syuji. It was serialized in Comic Beam from 2005 to 2007.

Plot
Masahiko is estranged from his family and lives a dead-end life in Tokyo, working as a chauffeur for high-class call girls. When his sister dies under mysterious circumstances, he inherits an unlabeled CD from her possessions. Listening to the jazz music it contains, he is propelled into an out-of-body experience. As he repeats the experience, he begins to wonder if this was how his sister died. Masahiko is determined to find the cause of her death, and the mystery behind the CD.