Titre original : Cruel Tool
Hanasaki's act is successful in convincing Akechi and the Boy Detectives' Club that he was kidnapped by Twenty Faces. Akechi takes off to try to save him, saying he has an idea where Hanasaki might be. Kobayashi and the others are left behind, but Ohtomo gives them a hint as to where Akechi's gone, so they set out to track him down. Hanasaki is at Le Waqua, following Twenty Faces' instructions to take over the complex by controlling its security robots. Then Akechi arrives, and an epic shoot-out with the security robots unfolds.