Ren is a world recognized demon hunter that kills demons of all types but there’s only one demon specie he has never seen before and known as one of the most powerful ones…

you are the last demon of that one powerful demon specie…you are evil and want to get an end to all mortals on earth. One day you were attacking a village as you suddenly got the smell of some weird aura…it was Ren staring at you a bit shocked to see the demon specie but still serious

“There you are demon…”