The main character of the story is Azu Shichikoku, a new graduate employee of a real estate company. Anju, who will be trained at the luxury nursing home Grace Court, finds a corpse on the premises on the first day of work. However, it was a play, and the Madams who moved into Grace Court were enjoying the play of inviting a theater company to tailor a murder case and guessing the criminal every day. When Anju, who was asked to do her first job immediately, was guiding the unfriendly man Niiname who had come to the tour, Madame and her friends decided that Niiname was the culprit. Anju and Niiname are involved in the breathtaking Madams who absolutely prove that he is the culprit.