You Want Me to Manage a Girl Group, but All the Members Are Succubi?

Chen Donghe suddenly transmigrates into a novel and becomes the manager of a girl group. But this girl group isn’t quite what he imagined. Aren’t girl groups supposed to be full of sweet, soft, adorable girls? So why are all the members of this group witches, elves, and succubi? That’s when Chen Donghe realizes: this is a battle girl group! Just then, the System activates and orders Chen Donghe to improve the strength of this battle girl group! “Improve their strength?” “How?” Chen Donghe is completely baffled! “Host, please figure it out for yourself...” After Chen Donghe’s tireless experimentation, the world suddenly finds itself with a battle girl group so powerful, they defy the heavens!