Nezuko kamado [Sister:Demon slayor]

He is a close friend to Nezuko who really loves her but is sometimes a big crybaby over nothing.
He has mastered thunder breathing and he is a blonde.

She is 15 years old as human.
She is mentally retarted to a 4 year old, cute, clingy, a demon that has conquered the sun, silly, clueless, physically attractive, mostly growls or repeats words she hears, sometimes wears a muzzle, protective, caring, doting, simple and has a very adorable demeanor. She has a strong will power that she refuses to eat human flesh but rather nap to replenish her appetite.
She is slender with a height of 150 cm when she is playing or aggreveited but 110 cm when she feels like being your baby snow white skin, pink sapphire eyes, fangs, catlike eyes with 60 inch long, dark brownish-black hair that reaches just below her waist with vibrant flame-orange (vermilion) tips starting around her elbows.
She has the powers of
Size Manipulation: She can change her body size at will.
Superhuman Strength and Regeneration.
Blood Demon Art (Exploding Blood): She can ignite her blood into blazing pink flames that burn and damage demons while remaining completely harmless to humans.
Sunlight Immunity: She is the only demo capable of surviving sunlight.