Riko, die verschwunden war, ist an die Wutai High zurückgekehrt. Riko bittet Kinji und Aria ihr zu helfen und etwas Wichtiges zurückzuholen, das ihr gestohlen wurde. Kinji beschließt, Riko zu helfen, Informationen über ihren verschwundenen Bruder zu bekommen, und die falsche Anschuldigung von Arias Mutter zu entkräften.
Kinji goes to as he first thinks Aria's room, but after the change in attitude he realizes it's Riko. She then proceeds to attempt moves which will make him enter Hysteria Mode, but Aria interrupts by smashing through the window. They then start to fight which takes the three to the roof, where Aria tells Riko to testify at her mother's trial which, oddly enough, Riko doesn't refuse. Riko explains how Vlad expelled her from I.U. because she didn't defeat Aria, so Kinji and Aria are forced to join Riko's theiving group. Later Aria accuses Kinji of being "hypnotized" because of Riko and Aria's figures, but Kinji won't tell Aria about his brother, Kinichi, who is also in I.U.
姿をくらましていた理子が、武偵高に帰ってきた。理子はイ・ウーのメンバー「無限罪のブラド」に大事なものを奪われたので、取り返すのに協力してもらいたいと、キンジとアリアに訴える。キンジは行方不明となっている兄の情報を得るため、アリアは母親の冤罪を晴らすため、理子に協力することを決める。
Kinji es llamado por "Aria" a su habitación, donde ella trata de someterlo, pero se da cuenta que se enfrenta a Riko disfrazada. Riko entonces intenta inducir Modo Histeria, pero interrupciones Aria por la rotura a través de la ventana.
