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."