Mr. Manaka have been brutally murdered in the Hell Gallery. Conan, Kogorō and Inspector Megure discovered that the moving knight is the cause of the damage. Conan is re-watching the video after seeing that Mr. Manaka is writing something which they also are seeing that the paper is still in Mr. Manaka's hand. After that they went to Mr. Manaka's body, the paper is still indeed in his hand which Megure opens that paper showing Kubota (クボタ, Kubota) which believes that Kubota is the culprit for murdering Mr. Manaka. More have been revealed about Kubota which he is even more suspicious under the police eyes and his fellow colleagues. Conan found the pen that Mr. Manaka had thrown away, which he immediately calls Inspector Megure. Megure tests the pen which is as same what is on the victim's dying message. Conan then head to the security room which he wants to see the video again which he discovers that the pen that Mr. Manaka had was retracted. After that Conan have seen the dying message of Mr. Manaka, he have discovered who the culprit is.