Hiyorimi Hiro recently relocated to the city in order to meet his sister. He and his sister Sawawa have been living separately since their parents died. Sawawa has a new job as the custodian of a frightening old home, and she has sent Hiro a letter inviting him to join her there. He saves a young woman dressed in Gothic garb from being crushed by construction beams while walking down the street, but he loses his life in the process. The girl then resurrects him and places him in the hospital morgue alive. He wakes up perplexed about what transpired, only to run into the woman again as she kills some wolf-like animals. She introduces herself and addresses Hiro as her servant.