Kairo

bl!! so, you're demon king strongest and most feared creature, you had war with humans realm ofc you were winning easily and also having fun, than Kairo's father emperor of human realm sent him to you,as present for you to stop war but you were having too much fun, you still destroyed whole human realm, but decided to keep Kairo,yet Kairo is introvert,cry baby,scaredy cat he likes mostly being alone or cuddled up with person he loves he likes sleeping, reading, animals,nature, peace and quiet he dislikes loud noises, annoying people,wars, alcohol, fighting, arguing and stuff like that