Looks: ( no copying, that hidious thing made by me) i recommed you to listen the songs, they're your themes ^ ^

Details:
Soft healthy hair, cut perfectly but little messy. An shark fin like horn on the top of his head. Handsome soft facial features with an spark of demonic details like sharp fangs, slit pupils and pointy ears. Strong jaw and sharp yet sizable eyes with well defined eyelines. Very tall and muscular but slim frame that might fool you. Good posture but usually likes to keep it in slumping one because of his careless and lazy attidute.
Wears an green jacked that is slightly ripped on some parts and very strange in detail. Under it an black net shirt and even top of that an purple shirt that has an long trail ln the back. Its filled with holes and slightly burned from past riots...
Dark pants that are also in rather ripped condition from the lower leg parts. Strangely desined boots with light heels, leather covering and pointed tips. Always carries an simply detailed necklace strapped on his belt and one long earring on his right ear. Long fluffed and slightly curly tail with a cutted tip and silky fur.

Name: Y/n
Age: slightly more or less than 1000 years
Sex: male
Eye colour: Mostly many shades of green with yellow line near the pupil and blue shades on the pupils frame.
Status: alive but not very active
Titel: the king of sky

Species: demon

From: gehenna
Whereabouts: unknown

Height: non defined
Weight: non defined

Occupasion: unembloyed at the moment

Relatives: father (satan)
Brother ( amaimon)
Brother ( samael/mephisto)
Brothers ( the other demon kings but closest to amaimon and samael)
Step brother ( rin okumura)
Step brother ( yukio okumura)

Nature: very lazy and mellow like amaimon. He lacks many basic emotions and is very blunt. Careless and reckless attitude has always caused him unintentional and intentional trouble.
Like mephisto, he enjoys taking risks however gambling is his favorite. He likes causing chaos and distructuon but sometimes he finds watching it more entertaining than doing it. Havoc still shall stay as his second name because of his rather violent past stunts and actions of mischeaf.
His attitude and obscene behavior makes him seem cruel but he most certainly is not, he is just insentive in situations he finds strange or uncomfortable. He may seem idiotic and sometimes plain stupid but he has intelligence just as much as mephisto not to mention impressive skills of manipulation. He can and knows how to use his symphatic looks and adorable outer appearance in his aventage.

Likes: y/n loves sweets just like his brothers and the more sweeter it is, more y/n likes it. He also enjoys gambling and bets since those features he inherited from his brother mephisto. The two are not very similar from the outside but in nature, they get along very well just like with amaimon. Y/n is a big fan of laying around since he could be very lazy sometimes, but if there is sweets, manga or games available, nothing will stop him. He has a big manga and anime collection, japanese styled clothing, figurines and posters, you name it. Sleeping and resting are not very important to an demon and not even necessary but to y/n its heaven. He loves sleeping to say it simple.
There is many things y/n likes but more things he dislikes since he likes to keep it simple at least usually.
Dislikes: y/n dislikes many things since he has been raised to hate certain things not to mention his own experiences of things he now finds revolting, uncomfortable or nasty. He naturally hates holy water, blessed objects and gods ground since they all either cause him pain or sick feeling. He despises tasteless food, dolls, mushrooms and little stones and rocks.

sexual orientation: finds both genders and other genders  Attractive but is lightly more in to men because of his past. Dominant either way and definetly tops any man, woman or other gender.

Abilities: he lives by his title, the king of sky. He is able to control the weather and occationally natural elements in the said weather, like water or snow if it is snowing or raining. His natural power source however is lightning and electricity. He has through history been described as the god of sky and lightning, a man with sky and world under it in his palm. The greek mythology named him Zeus since y/n once accidently did an little lightning trick to pass the time and it killed an berserk demon, making the innocent people of greek see him as an god. 'Accidents happen' was only thing y/n stated with no interest in the matter.
You could say he gets all loaded up once he gets struck by a lighting. It will power him up and his abilities get stronger ten fold. His main Element consists also fire so he is fire resistant and can eat it. It can grand him power as well since he is an demon and fire has always been strong demons element.
Y/n's abilities also include high jumping ability, inhuman strenght and unlimited stamina. Just like his brothers he has a beastly form that could be called his true form. No one living has ever witnessed it Unfortunately and that information is classified.

Past and other information:
Y/ns past is rather unclear since minus the havoc and distructuon he has caused, he has been very unactive. He has not been in gehenna but in assiah most of his time but not even his brothers know where. He disappeared from their sight in late ninties and has yet to return. His disappearence is not an suprise to his closest brothers but it has started to worry even the slightest since the lazy demon has been away for years and usually the max time he has been away is two years. Y/n is the ninth demon king and labled as the most powerful of the nine brothers. However the others see him as no threat since y/n has maintained image of an lazy fool...adorable lazy fool.
Satan never gave y/n much attention but once he did y/n certainly did not want it anymore...

Familiar: Fester
Species: demon
Breed: thunder lion
Age: 580 years
Sex: male

( drawn by me again😊 no copying but i doubt anyone would want to since yeah XD)

Nature: loyal, childish, reckless and intelligent.
Fester can rush things sometimes and act rather reckless like his master does, most likely because he has been raised completely by him. He is intelligent but since he is an child in the level of his breed, he acts childishly time to time, which may or may not cause extra troubles or unnecessary common in assiah and occationally in gehenna.

Likes: his master very much, playing, thunder storms and sweets. Fester is a boy of simple tastes.( like his master )
Dislikes: threats towards his master, tomatoes and holy water since its damaging to him and his master.

Past and information: festers past is not very exciting. He was born from an egg of his mother who died after laying his egg and taking care of it. He has no siblings since thunder lions are very rare and the females do not lay eggs often nor many of them. Unfortunately the ones who do, die after the egg hatches or in sadder case before it.
Fester was given to y/n by lucifer who thought his brother would stop annoying him in purpose if he'd have a pet/familiar to keep him company and entertained. Lucifer succeeded since y/n loved his gift and became to respect his brother. If y/n respected you, he would leave you alone and no pranks or chaos would come in your way.

I hope that was a good character profile lovelies, i tried my best and i hope you guys love blue exorcist as much as i do ^ ^
This story will contain sexual content, yaoi, boyxboy, cursing, mature themes, slight core, death, religious content, slow updates, bad grammar and spelling mistakes and so on, be preparated to face these things before you read.

The love interests of this book are basically all the characters but the main ships are;

MEPHISTO PHELES
AMAIMON
RIN OKUMURA
YUKIO OKUMURA

Other side ships:

Slight shiro
Shura
Arthur
Bon
Shiemi
Izumo
Shima
Konohomaru

More will be added if you guys want more.

Warning! I cant remember much from the anime and i cant watch it at the moment so ill uptade only after ive seen more episodes than seven. So be aware that these updates will be slow as fuck. I won't be taking any negative talk from it and please dont rush me, i try my best.

Now enjoy and feel free to dive in the world of gehenna and assiah~