After Kogoro was turned unwittingly from the defendant's witness to the prosecutor's witness Kogoro conducts his own investigation and investigates Usami's home while accompanied by Conan. During the second hearing, Conan tranquilizes Kogoro to reveal Kamedo to be the murderer. Conan reveals that the Baby Octopus was served only at her bar and was found in Hirasawa's stomach, meaning he had visited the bar and that after his visit, he was killed by her. Usami having witnessed the murder places his car keys there to place the blame on himself. Kamedo confesses and admits she wanted to avenge her son. After the hearing, Eri asks Kogoro if he would like to go to a restaurant with her only to be ignored by Kogoro who is distracted by a beautiful woman.