Once they all arrived at Yoko Okino's apartment, they are all shocked seeing a dead body on the ground. Kogorō wants to get the police around here but manager Yamagishi want to keep it a secret. Kogorō yells at him saying that he's insane and tell Ran to call the police anyway. Inspector Megure is at the case, which Conan is trying to help them but got hit by Kogorō. Manager Yamagishi is acting suspicious which Conan noticed. Later after that some clues has been gathered, another idol has been known, which is Yoko's rival Yūko Ikuzawa.