The setting is the near future. Dr. Han is the main developer of a Z project: Mutant Development Project. He comes to feel revulsion for the project for its inhumane ways, so he leaves the research. He continues his own mutant development research at an abandoned church in a suburb. A monster, sent by a Z project, tries to assassinate Dr. Han in order to take the project sample. In order to save himself from the monster, he has no choice but to inject the sample into his body.
