Ayumu has been issued yet another challenge by the Blade Children, a challenge that could most definitely be Ayumu's greatest and deadliest one yet. Meanwhile at the police station Madoka tries to get into Kiyotaka's file and learns that there's a chance that Adachi, Sonobe, and Imazato possibly have something to do with Kiyotaka's mysterious disappearance. Who were these three really, and can Ayumu and Hiyono actually defeat the Blade Children once and for all?