The phone call came without warning, the voice on the other end telling Masahiko that his sister Asami was dead by unknown causes. After meeting with the woman from the call, Yukari, Masahiko travels back to his hometown to find a memento of Asami, taking with him the last CD that she listened to. But when the man slides on his headphones and gets to a certain track, his spirit leaves his body, much to his surprise. Why can this CD cause Masahiko to astral project, and what really happened to his sister?