(Just a heads up, I only played the original BlazBlue and the sequel where Lamda is introduced, so idk what happens in other games)

These are the girls in the harem:

RWBY:

Pyrrha and Nora:

Coco and Velvet:

Cinder, Emerald, and Neo:

Teammates and also part of harem:

Noel Vermillion: (sorry if you don't like her, but I wanted to add her as she's actually my favorite from the BlazBlue games that I've played besides Cross Tag Battle) (idk if I'll have her be in her original outfit or the new one from after the whole Continuum Shift game or whatever it's called)

Makoto Nanaya: (cause I know she has good chemistry with Noel)

Bullet: (cause I wanna have her fight Yang, and I haven't used her for a story before)

If there's anyone else you want me to add, let me know and I'll see if I can add them.