One day, certain news shook the residents of the GeGeGe Forest like an earthquake: Nezumi-Otoko will get married. Dubious, Kitarō and the others make their way to the wedding venue. There, they find Nezumi-Otoko in a tuxedo in a good mood. With him was his bride, and contrary to everyone's expectations, she was a beautiful woman by the name of Yōko. Although they were in a state of shock, Kitarō and the others wish for Nezumi-Otoko's happiness. However, they haven't heard from him since. Sunakake-Babaa and the others grow worried and decide to search for him. Before long, they find an emaciated and scrawny Nezumi-Otoko in town. Apparently, it seems that Yōko suddenly disappeared in the middle of their honeymoon. Nezumi-Otoko was caught in a marriage fraud!