Author here!
So the Harem so far is :

Ruby

Yang

Weiss

Blake

Pyrrha

Nora

Glynda

Anyone else you want me to add to the harem just comment! Oh and another thing! If you want me to bring someone else into this world and be in the harem as well who would it be? It could be anyone you want! Like for instance Rias Gremory from Highschool DxD!

Bye for now!