As a Demon Hunter, I Have a Vampire Progenitor Mom

The gods slay the demon ancestor Cain with the Fourth Progenitor, a weapon of war they created, then seal him away, until several thousand years later...

Cold air fills the room as a girl lying in an ice coffin slowly opens her eyes.

"You have finally come, my child..."

Li Luan: "???"

(This is a battle series! A battle series! A battle series! Important things must be said three times.)

(A crossover world, already fused with Strike the Blood, Campione!, Gensokyo, One-Punch Man, Type-Moon... Well, that's all for now.)