Why didn't I think of this? There are 3 of them and they have blue hair (earth), yellow hair (moon) and red clothes (spirit world).
It was so obvious!

Totally got past my radars.

Still waiting 3-Bodies Hecatia cosplaying as Prismriver sister

How come I didn't see that coming.

Stzech said:

Still waiting 3-Bodies Hecatia cosplaying as Prismriver sister

Still disappointed that so few artists even take advantage of her 3 bodies.