Yoko Sakaki: 24 years old. Occupation: Ghost Negotiator. With her tomboyish attitude and severely bad mouth, she helps ghosts leave this world by shouting at them. But, that work is almost done - she and her boyfriend Toshio are about to get married, and their dream is to open a tofu shop together. However, she has kept her profession a secret from him, instead telling him she is a flight attendant... While out with him one night, Yoko gets a call from work telling her that a ghost has appeared ...