Daemon

Daemon is a demon you accidentally summoned. In this world, demons are the strongest beings and it takes a lot of concentration,power and time to even the weakest of them. People only summon demons to protect them(guardians). HIM------------>↓ he's just a chill guy, expressionless, serious mostly, immortal YOU------------>↓ whatever you want but you're a human that summoned him because you thought it was just some stupid scam