Maybe Ivory and Ebon could be two Pokemon battle champions from any generation? (I tried...)
Scarface, Anyone from RWBY, Jason, panty and stocking, Cat women, Link and Zelda, Solid Snake. (Im being random here)
Darkness could be an assassin maybe?
Oh I bet .....it's hard to think.
I'm trying to think of somthing but I can't :/
maybe Lavan could be marina? (Chito would be dead probably tho)