Sento was suddenly poisoned by someone with a cobra marking on his chest! The poison has caused Sento to remember another human experimentation memory. Sento remembers one side panel of the Pandora Box within the human experimentation site. A wounded Sento realizes that the Pandora Box will lead them to the secret organization, Faust. He asks Misora to gather information on the Sky Wall. Meanwhile, Ryuga arrives in Seito to protect Nabeshima's family, which could serve as a clue to solve his false murder charges. Faust suddenly appears before Ryuga who desperately attempts to protect Nabeshima's family...
胸にコブラマークがある何者かに毒を打たれた戦兎は、人体実験の夢に再びうなされる。
その記憶の中で新たに思い出したのは、パンドラボックスの一面のパネルが人体実験場所にあったこと。
目覚めた戦兎はパンドラボックスが敵組織・ファウストにつながると察知して、美空にスカイウォールの惨劇に関する情報を集めるよう依頼する。
一方、龍我は自分の冤罪を晴らす手がかりとなる鍋島の家族の保護に向けて西都に到着する。
無事に鍋島の妻と子供を保護したかに見えた龍我たちの前にファウストが現れて―――。
Depois de ter sido envenenado por alguém com máscara em forma de cobra, Kiryuu Sento volta a ter pesadelos com "experimentos humanos". Ele se lembra de ver um dos painéis da Caixa de Pandora no local em que esses experimentos eram realizados. Sento crê que a Caixa esteja conectada a Faust, a organização responsável por tais experimentos, e pede que Misora reúna informações.
