Although knowing the problems of White Night Cape, Bocca continues to try and destroy the Monster Union robot creature. Everyone in the town knows of his intentions, and sends Bocca into jail. Sayako finds out that Kew knows about Keiko siding with the Monster Union, and saves Bocca from jail. Even with Sayako's warning, Bocca still calls for his Aiba-Machine and tries to save Kew from her sister's hands. The battle of Bocca vs. Midnight Fledgling begins.
モンスタ－ユニオンと戦おうとするボッカは、わかだんと無数の大人たちの罠にかかり捕まってしまう。
牢屋に入れられたボッカを助けに来た小夜子だが、逆にわかだんに見つかって一緒におりに入れられるハメに・・・。
