The Revolving Sushi Mystery (Part 1) Agasa takes the Detective Boys to a revolving sushi shop. While there, Ryuuzou Agatsuma, a food critic, collapses by cyanide poisoning. When the police arrive, Conan tells them there are three possible suspects: the manager Danji Namaki; Osamu Aizono, the costumer seated left of Ryuuzou; and Saikko Takemura the woman six seat right of Ryuuzou. After the police search through the costumers and sushi, they were unable to find the source of the poison. The police then interrogate the suspects connections to Ryuuzou and each reveal they have a motive for the murder.