A/n : "ok before I start I've been thinking of Gender bending DBZ, but don't know yet.

Elfenlied

Kill là kill

Tenchi-Muyo!-War-on-Geminar

Haiyore Nyaruko

Fate

Demon Slayer

Akame Ga Kill

Hundred

Demon King Daimao

Is This a Zombie

Kaze No Stigma

Knights and Magic

Armed Girl's Machiavellism

Fate

Demonbane

Pokemon(suggested)

Absolute duo

problem children are coming from another world aren't they

No Game No Life

Blade dance of the elementalers

Rosario vampire

I Think that's it just a heads up I have seen most of all these anime's but some I havent so I may have to create a way for the characters to meet.