Conan, Ran, and Sonoko are taken to Sera's regular ramen spot, Ramen Ogura, where a murder previously occurred. Inside they find regulars Shono Yuna, Mizushina Sosuke, and Nakanishi Osamu eating. Conan finds the great quantities of condiments and seasoning they put in the food strange. After they leave, employee Sayo reveals a robbery-murder occurred in the neighborhood a few days earlier. The police chased the culprit into the restaurant, and the customers present at the time were Shono, Mizushina and Nakanishi.
