Prince of tricks and King of the forgotten (blue exorcist) (on hold)

Chapter 1: cat fight

I had this idea, I'm not sure how long this will be or even if I'll finish it but oh well. I not really good at completing books so read at your own risk.
Also I may do a ship vote after Rin meets each of the Kings and I may draw how I think each of the kings look. As I think only a few are actually show in the manga and two in the anime. Also I've only watched the anime and read fanfiction, along with many fandom pages, I hope all the info ice collected is right but I'm not sure. Also this will main be focusing on Rin learning more about demons- for now at least.

Third person pov

Amaimon looked at his brother who held him by the arm. Amanimon was mad, to say the least, he didn't want to go to each. Sure he loved it but during his own time not when he's being forced to go.
"Mephisto if you don't let me go I'll have your head" he screams at the dark haired male who just scoffs at his brother'a antics and drags him away. He had made a deal with true cost that as long as Amanimon dosen't kill or critically injured anyone he was free to as he please as long as he kept an eye on him. Mephisto agreed as Amanimon didn't have a choice in the matter and he held a small bit of power over his brother.

Amanimon now laid, more like flouted, in the middle of Mephisto's office, both had travelled around for a few minutes before Mephisto needed to work. Amonimo was bored but stayed put as he was promised more candy, a weakness Mephisto loved to take advantage of, Amanimo will do almost anything for candy. A knock on the door caught both brothers attention before Kirigakure Shura came in dragging Rin while Yukio walked calmly next to the pair.
Kitigakura ignored the earth king who was now intensely starting at Rin, Rin stiffined but looked back at him. The two seemed to be thinking the same thing as both of there heads turned to the small candy jar on Mephisto's desk.
Both ignored the conversation going on as Amanimon got candy. The two eat some of the candy before Mephisto looked towards them. Both bolted towards the door before Rin tripped over his own tail making Amanimon stop tuning to laugh.

"Im sorry, what just happened?" asked Kirigakura was seemed to be looking at the male's in the room questioning everything.
"Seems Rin and Amanimon share a common interest or two" Yukio said with a dull voice before waking over to his brother. "Next time don't trip over your own tail" he added before grabbing his brother while Mephisto only pointed towards a chair tilting against the wall seemingly to defy gravity.
"Now ware where we- ah right. I think Rin and Amanimon should do some work together and Amanimon should stay with you and rin" Mephisto said looking at Yukio.
"Fine..." Yukio mumbled before looking at the green haired demon king who was sitting in the chair upside down. "He can't have less common sense then Rin... Right?" he seemed to be questioning his choices already but Mephisto quickly teleported the four of them to the dorm, leaving Kirigakura outside of his office.

With Mephisto leaving Amanimon seemed to be almost agitated being as close as he was to Yukio so moved so he was closer to Rin, who was trying to light a candle in the mix of ten other candles. The one right in the centre. Amanimon sat down next to him and tilted his head.
"This isn't a demon thing and I doubt its a human thing... So what are you doing?" asked a quite voice surprising Rin. His flames lit up and the wax exploded causing both male's to scream. Yukio turned to the explosion ready to attack before shaking his head, he was taking his books into another room to study looked at the two before saying a quick goodbye and don't burn anything up.

The two demons quickly became friends over the next few days and Amaninon even started to help Rin with Traning. Amaninon loved to watch Rin's flames, or any flames of that mater, shocking Yukio when Amaninon had watched a candle burn for more the two hours while he was studying and Rin was doing extra work with Mephisto. Both male's had gotten into some mischief, usually from stealing Mephisto's candy.

"Yuki, Amanion" Rin said while walking into the room with a few books in his hands. Yukio got up and grabbed two books allowing Rin to see where he was going.
"Thanks Yuki, I don't understand why I have to being these in here" Rin spoke but didn't really want to question Mephisto's actions.
"Probly because some of the other demon kings are going to be coming over in the next few weeks" Amanion said almost like it was a second thought as he looked at the books Rin had. He grabbed one throwing off Rin's balance, Rin side stepped and his tail shot out so he could keep his balance.
"What was that for" Rin started with a yell but his voice quieted as he noticed what book Amanion was looking at.
Yukio noticed as well and walked closer to see what he was looking at. "Something wrong?" Yukio asked braking the silence.
"He hasn't even fixed the messed up information, and the ones that are right dosen't matter that much for demons, it would only effect humans, that's so stupid" Amanion in the moment seemed like a kid throwing a small tantrum as he raised his hand and snapped his fingers. He quickly disappeared, leaving Rin and Yukio to guess Mephisto's office.

Yukio gave a slight laugh before going back to work as Rin started to put the books into a small bookshelf he usually didn't use. Rin started to read and soon finished the book he was reading. The open window creaked and Rin looked up to see Amanion jumping down into the window seal, with the book and a notebook. He saw the books put away but ignored them and dropped the book and notebook into Rin's desk. Rain looked questionably at Amanion before moving back.
"Dont drop random things on my desk!" Rain said loudly while looking at the green haired male in front of him.
"Oh shut up I made sure the information you have is right" Amanion yelled back but a bit more playfully. "Don't yell at me" Rin yelled again matching his tone.
"Don't yell at me" Amanion yelled right back a smile on his face as he got into a Pouncing pose. Rin backed away a bit in a weak attempt to not get caught by Amanion as Rin continued to yell about not yelling at him.
A flash and black and green and a loud bang made Yukio looked towards the two. Rin now on the floor with his tail pinned at his aide by Ananion. Amanion's own tail swishing violently behind him. Both male's mad there fangs bared yet despite there mean looks Yukio thought it looked like a cat fight making his laugh.