Dark Dimension Zero is a tale of young Zero, a half devil-half god who has been given the duty of coming to claim the souls of the living once their time has come. In this first tale, Zero comes for a young girl, who has plunged off the side of a building going after the most precious posession in her life, a book. Can love guide her back to the realm of the living, or will this trip into eternity be permanent?

In the second story we learn about Zero's past. His mother, who is imprisoned in a crystal in the Demon Realm, breaks free in order to save Zero from a ritual that will turn him completely to the dark world. But in saving Zero, she leaves herself open to recapture, and young Zero must leave without his beautiful mother.

In the third tale, Zero has found a young man, who refuses to let go of his previous life because of a woman he loved. Demons come to tempt the young man in order to attack Zero, and a fierce battle ensues. Will Zero prevail? Or will the y