Disclaimer: I do not own Harry Potter or Ai no Exorcist, I'm just playing in the lovely sand box of their universes. I also do not to the best of my knowledge earn any money from this story or any other story I write using any of their characters.

AN: to be honest this is a story that only really came about because I became interested in Ai no Exorcist and wanted someone to talk about it to so my sister and I talked out a story crossing it over with Yu Yu Hakusho and while joking around came up with the idea of rim being mistaken for a god by a certain group and ending up with a cult following him. After that I became fascinated with the idea of it particularly when I took into account that Satan was considered the god of Gehanna and Rin is one of his sons and arguably the one who inherited the most from him abilities wise. Unless inspired I probably won't make this more than a oneshot.

Italics- generally when Rin isn't sure of the correct word and I remember to put them to show that, and it won't make things needlessly complicated to do so.

In which Rin accidently becomes a god...

Rin blinks at the...person?! he tilts his head unsure... in front of him. Tall with big green eyes and dark wildly curling hair Rin wasn't quite sure if they were male or female or even if he cared at this point, they had helped him when he got in over his head picking a fight with the middle schoolers who had been teasing Yukio. Rin's pretty sure he could have taken them if the world hadn't taken a turn for the strange when one of the boys went crazy and bit him with teeth sharper than they should have been. Everything went a bit hazy at that point floating black spots, horns tails, pointed ears and fangs spread across his vision leaving him off balance and confused. He thinks he may have caved someone's chest in when he started panicking , and then they had showed up slinking out of the shadows eyes glimmering and the sound of bells echoing with every step. They hummed the tune bouncing through the street hauntingly lovely yet something not entirely natural about it like he was hearing only part of it and the rest was thrumming through his blood with pounding of his heart. One second he was staring up at the guy with the fangs and the next all the middle schoolers left standing had fallen over unmoving to the ground. Rin stared at them as they shifted to face him eyes flickering to the still bleeding bite as the tune changed to something less heart pounding and more hypnotic and the blood on his arm flew backwards into the mark and skin closed over it bruises disappearing right before his startled eyes.

"Can you teach me how to do that?" Rin finally says breathless, eyes wide and pleading. They still suddenly staring at him unblinkingly for what seems like minutes before finally nodding once and turning on their heel and walking away. Rin picks himself up of the ground and hurries after him.

Incidentally this is the beginning of the end

Now, Rin has learned plenty in the past year and a half the most confusing thing he had to wrap his ming around was that they literally do not have a gender in the way humans see it they can be either, both and neither all at once and separately as well the biggest issue he had was that he was now expected to learn to do the same. He had no problem being a she on occasion, or even being both genders, but having no gender at all left him feeling unsettled for days afterwards. The unfortunate bit is that it was actually necessary to learn in order teach his body and mind to manipulate the energies necessary to affect all possible genders, himself and even reach the correct depths and heights to actually use the hymns he's learning.

The next bit he's upset about is that when he introduced Yukio to them and tried to explain what he was learning Yukio freaked out insisting that it was impossible and suggesting he stop playing strange games looking like he was about to cry. Normally Rin would listen to Yukio, but at this point he's already invested and instead grows offended refusing to stop.

By the time Rin reaches seven he has been studying with them for around two years and it's then when things take another sharp turn towards the end.

"Help, I swear I will be more attentive to my tutors and spend the rest of my life in your service if you get me out of here!" The teenager cried to the ceiling coughing from the smoke in the building that was burning down around his ears. He was going to die, he was going to die, he was going to DIE! It wasn't until the eerie whistling filled the whole room that he realized he wasn't alone, he scrambled around on his knees to look behind him when he was grabbed by the hood of his shirt and dragged through the fire. He shrieked in fear clenching his eyes closed and then opening them in shock when instead of being burned there was a soothing warmth he followed the hand attached to his hood too a petite child with dark pigtails dressed in a ruffled jean skirt and flipflops skin glowingly ethereal in the flickering blue fire that surrounded them as she continued her eerie tune body swaying along as she pulled him out of the burning building.

Once they were out on the street she dropped his hood and her whistling slowed to a stop leaving a silence even more eerie than the tune was in the first place. He opened his mouth prepared to thank her men the building collapsed behind them. She turned expression furious, "What kind of moron sits in a burning building waiting for divine intervention instead of just crawling for the exit themselves while they had the chance! If I hadn't heard you you'd be dead right now! Do you know how hard it is to hold a building up while keeping the stupid human inside from dying from smoke or fire and then dragging their useless ass out of the building all at the same time! I don't have enough energy to do all this on a whim you know! And I certainly don't have enough to heal you afterwards as well so you can forget about that! If I find you've been so stupid as to ask for divine help without a pre-existing contract with God and without even having the decency to try to help yourself first I swear I will make you regret it, as it is I will be taking your peace of mind from you in recompense for daring to be so foolhardy!" He stared at her in awe even as she roughly grabbed his hand and grasped something from the air before slamming it into arm. As he felt invisible teeth sink into his hand and the world shifted becoming simultaneously lovelier than ever and much more horrifying as tiny black puffs with tails and large eyes and ears like a cat's came into being, yet the girl seemed to glow with otherworldly light as she gently released the small creature in her hand smiling gently at it. She turned back to him with a scowl before sighing shaking her head expression softening to exasperation. "If your looking for faith go to the church down the street just stop being so stupid about the whole thing." she turned to walk away and he finally snapped out of his daze enough to call after her.

"T-Thank you! will you tell me your name?" He looked at her hopefully, her expression was bemused as she glanced back at him.

"Rin, now go see a doctor or something, I saved you from all immediate threats, but those burns can get infected if not treated and I refuse to have you get sick after putting in all that effort." She sighed "I'm going to have to eat a lot to recover all that energy" she mumbled with a pout, "Oh, well take care" sh-no Rin -sama said with a yawn.

"I-I will make it up to you I swear it!"

"You have to much energy stop talking to me" and then Rin-sama was gone and he sat there on the streets staring after her eyes wide and with slowly growing fanaticism.

This just happened to be the moment Rin became Rin-sama patron deity to the heir of a mafia family and through a series of coincidences the belief spread throughout the entire underworld, Rin is unfortunately entirely oblivious as to why these strange people keep coming up to her and giving her food and gifts in exchange for the occasional advice and help if she happens to be in the area when they need help. He and occasionally she keeps pointing them to the church whenever they mention god or goddesses insisting there's only one God. In honor of this the boss memorizes the entire bible and listening to the advice of Rin-sama recites verses when in danger one day and ends up accidently exorcizing the attacking demon. Oddly enough this just makes them more insistent on his godhood.

...of the mafia.

Omake: Mother

Rin stares them down determinedly.

"I'm not your mother." they said perfectly calm as they sipped their tea.

"Huh? but we look alike and you've been teaching me things like a mother would" Rin stated confused, "So why not?"

They sighed setting down their tea before giving Rin a considering look, "I will let you meet your mother if your interested, however it is not my place to be called thus." Rin nodded. but her face had a petulant cast to it. They held out a hand a strange ring appearing on their finger and started turning itself turning three times before stopping. "There meet Egin Yuri, your mother I will leave you two to get acquainted with each other." They said before leaving the room.

...

"Okaa-sama, says that you you can be my Kaa-san, because you've been taking care of teaching me important things that she and Otou-sama would have been doing if she was still alive." They looked at Rin their expression blank. "So Kaa-san when can I learn how to summon ghosts like that?"

Omake: Mother End