Ran, Kogoro, and Sonoko arrive at a popular restaurant. Conan and Professor Agasa join them inside after showing up late, where they are greeted by Nanjo, president of Suzuki Security, in disguise. He has been receiving threats since he provoked the thieves who stole a safe the other day, and is feeling constrained by the bodyguards assigned to him. Later, Nanjo steps away to visit the restroom. Conan realizes the professor has been in the restroom for a long time, and when he goes to check on him...!