Ran suspects that Conan might be Shinichi which Conan started to hide the statement of Ran which he is shocked that Ran have discovered his secret identity. Conan plans to fool Ran with a parody version of a Game Boy named "Gameman". Conan plays on the Gameman which Ran thinks that Conan is playing on that video game on purpose. Ran then wonders how Shinichi has been turned that small which she thinks about what she said to Conan before bringing him to her house. Conan asks if Ran also wants to play the game but Ran shouts to Conan saying no. After that Conan continued to play the game, Conan attended to save the file first but sees a list of save file slots with the name: Tomoya Ogino. Conan then reminds that Ogawa's son isn't Tomoya but Yūta. Conan then checks in the medical records which he finally found the name. Conan discovered that Tomoya passed away under surgery by Mr. Ogawa on August 3rd three years ago. Conan discovered the mystery and asks Ran to bring Dr. Ogawa and that she must need to hurry. While running, Ran clearly thinks that Conan is in fact Shinichi. Conan explains everything to Kogorō and Dr. Ogawa, Conan tells them that Tomoya's father will take away Yūta's life. Dr. Ogawa calls the kindergarten were Yūta attends but one of his teachers tells him that he has already been picked up. At the Beika Park, Yūta is with a unknown man that gave him a present. Yūta thanked him and asks him if he is really going to take him to a nice place. The man responds that he will take him to the nice place very soon, the place were his son is.
While Conan was playing with the Gameman, a parody of the Game Boy, he played the game: "Yaiba's Great Adventure". Yaiba is a series that was also created by Gosho Aoyama and had been released in Weekly Shōnen Sunday.