Angel 'N' Devil (終極惡女, pinyin: Zhōng jí è nǚ) is the seventh season of the KO series. It is known as K.O. Bad Girls, Angels and Devils and Angel 'n' Devil during the initial filming. It is the first series to be set in the Bronze Dimension. Despite being released after The X-Dormitory, it takes place 10 years before The X-Dormitory, concurrent with KO One Re-act.