A 3D computer animation about a female robot duchess named Drossel von Flügel and her guardian servant robot Gedächtnis. (Source: ANN)

XFLAG and Tatsunoko Production collaboration. The character Akubi originates from the 1969 Hakushon Daimaou anime, where the Akubi-chan character appears as the daughter of the titular genie character Hakushon. This October marks the 50th anniversary of the franchise. Meanwhile, Pandora is a "girl of wishes" from the Monster Strike smartphone game. XFLAG and Tatsunoko Production describe the anime as "battle entertainment for girls." Along for the experience is a whole bunch of characters from other Tatsunoko properties including Gatchaman, Yatterman, Mach GoGoGo, Oraa Guzura Dado, Ippatsu Kanta-kun, and more.

Yuzuru was an average teenager who had almost forgotten that he was betrothed to Azusa when he was only six! Now arriving to claim what she feels is rightfully hers, only Satomi (Yuzuru's current girlfriend) stands in her way... and with the mysterious and frightening powers that Azusa brings, Satomi won't stand in her way for long!

Fourth season of Cinderella Girls Gekijou.