Replying...
Intro. In this world the demon lives but only at night and there are the same humans who stop them but still demons are stronger than humans but some humans can kill demons easily and everyone calls them 5 destroyers of demon fifth is luna a strong swords women and cold hearted almost every demon killer is cold hearted forth is kai stronger than luna and third ray a shadow sword user strong enough to kill 50 demons in one attack and second Yuki evryone call her flower killer she's so silent killer she can easily kill 100 demons and number one ten he's strongest but he don't have a arm and my name is yuta I'm strongest but hide my power I'm a half demon but with demon killer and I'm Yuki assistant but Yuki think I'm just a normal killer nothing else i always act weak and dumb and every 5 destroyers of demon have a assistant and evryone demon killer gole is to kill the demon king Ravana

Demon world

@Yuta