Train Heartnet who is also known as "Black Cat" travels with his friends Swen and Eve on a search for a missing person. This person may be someone they have encountered in the past and may threaten their lives at least Black Cat's life.
General Note
Originally published: Tokyo : Shueisha, Inc., 2000.
Translated from the Japanese.
Printed Manga-style: book opens from left to right. Pages are read from right to left.