Ok so this is an AU of one of my other stories, "Tail's Out of the Bag".

This was brought to my attention by a review on ao3 by Ocean+Cryptid and I was like, yeah! I'll do an au of the one-shot. So there's the au and then their will be a sequel to the original one at some point. I don't know but I'm aiming to be on a writing spree.

But yeah, so I promised this a while ago to them...sorry! This one will probably have two parts as well because I have problems. But it's second part SHOULD just be a second chapter not a one-shot...but I may or may not already be thinking of more shots for this series that can fit in with the au and the original...

ANYWHO! I don't own ANE/BE

Also speach!

"hi" = regular

'hi' = thoughts

"hi" = demon speech

onto the AU!

"Rin!?"

"Okumura! What the hell!?"

"Was that a tail!?"

"Explain now!"

Rin laughed nervously and looked away from his friends gazes. "Er...hey? What's up guys?"

They all looked on in shock. When they had opened the door after hearing a yelp of pain, they hadn't expected to see Rin sitting on the floor next to Kuro, brush in hand and tail in the other! Rin seemed not to have noticed them either if his reaction was anything.

"Okumura?! What the hell!? Explain!?" Suguro shouted once more and Rin tried to avoid eye contact as he spoke.

"I-I don't know what you-"

"Bullshit!" Suguro snapped. "You know exactly what we're talking about, so explain!"

"...I-I...I don't…" Rin didn't know where to start, or even how to start. This was something he was hoping to keep silent but not they found out and he didn't know what to do.

"Rin...was that a tail?" Shiemi spoke up, his voice wavering.

Rin swallowed and clenched his fists before nodding. "Yeah."

"D-Does this mean...you're a demon?!" Konekomaru exclaimed, not knowing how to react to this.

Rin bit his lip before he answered. "I'm...I'm a half-demon, actually. I'll...understand if you don't want to remain friends with me."

"Do...do you know who you're demon parent is?" Shima asked, not replying to Rin's comment.

Rin bit his lip. He could tell them, let it all out now, but there was a small spark of hope that they might still accept him if he didn't say who he was related to. Despite knowing he shouldn't have lied, Rin did so anyway.

He shook his head.

"O-Oh…" Shima's voice died and Rin swallowed again.

"I call bullshit." Suguro huffed.

"Huh?!"

"Idiot." Suguro continued, coming to join their circle. "You're demon abilities should have made that clear. What do you know?"

"Umm...I can heal quickly and I can talk to demons." Suguro raised an eyebrow at him.

"That's it?"

"It's not that surprising." Konekomaru spoke up, fighting down his shock. "Not many half demons are powerful. They usually have the basic powers since they aren't related to high level demons. Those that are usually have slight abilities."

Suguro huffed. "Yeah, but I doubt that. Are you sure that's everything?" He gave Rin another look.

Rin shuffled under his gaze. "Why do you want to know so badly? It's not that important."

"Of course it is." Suguro replied. "We need to know what you can and can't do. Besides, there shouldn't be any secrets between us."

"Please Rin?" Shiemi spoke up, looking up at him with large eyes. "I don't want you to keep anything important from us."

Rin opened his mouth to reply before closing it. For a few moments he was quiet before he opened his mouth again. "I know...I can make fire." That was all he was going to say. He couldn't risk it, he couldn't risk them knowing he was related to Satan.

"So, you're probably related to Iblis, right?" Konekomaru said. "I mean...that's the most obvious choice. It's not like you could be the son of...of Satan."

Rin turned his gaze to the floor, not commenting.

"Hey, what color are the flames?" Izumo asked, furrowing her eyebrows as she had taken notice of Rin's silence.

"I...I don't know. I never really paid any attention to them, since they only come out when I have to fight. Sorry."

"Okumura." Izumo spoke sternly, narrowing her eyes. There was a glint of understanding in them, as if she already knew what he was keeping silent about, but it needed to be confirmed for her. "What is the color?"

He bit his lip and they could see where the fang of his teeth was about to bite into it. There looked as though there was fear in his blue eyes, the fear that stemmed from the idea of being rejected and hated. The look in his eyes was not one they had seen before and it sent a feeling shooting through them, a feeling of worry and concern.

Shiemi, with her heart so kind, moved closer to Rin and touched his arm, prompting him to glance up to her. She gave him what she hoped was a comforting smile and spoke. "It's ok Rin, you can trust us. We're your friends."

For a quick moment, Rin shot his gaze around the room, taking in each of his classmates. His final glance was towards Kuro who he knew would be by his side no matter what. Kuro, at the look, came closer to Rin and rubbed his head along his arm, offering comfort and support for his friend.

Closing his eyes, Rin took a deep breath before letting out a whispered word that, though quiet, seemed to thunder through the room.

"...blue…"

Silence. Rin didn't dare look up at his classmates. He didn't dare look up when he heard the intakes of sharp breaths and Shiemi's hand flinching away from his arm.

"...W-What?"

"Y-You're joking, right?!"

"Rin?"

"What the hell, Okumura?!"

"I'm not joking!" Rin exclaimed over the other shouts. He was trembling, but he clenched his fists in an attempt to keep it controlled. If they were going to react the way he thought they would, then he wasn't going to let them see how much this was hurting him. "I-...I'm not...joking."

They all fell silent.

The Suguro spoke. "I swear, Okumura if you think this is funny-!"

"Do you want me to prove it to you!?" Rin shouted, his head finally shooting up from where he'd been looking at the floor. He immediately noticed how Kuro had moved to stand defensively before him and much space had suddenly appeared between him and the others, especially where Konekomaru was concerned. The shorter male was basically on the other side of the room at this point, as close to the door without actually being on the other side of it. The look of disbelief with terror creeping on the edges of their expressions further shot a bullet through his breaking heart.

"Well?!" Rin continued, eyes now clenching shut to hold back sudden tears before he forced them open once more. "Do you?! Do you want to see them?! Do you want to see the blue flames?!" At this he reached over to where he kept Kurikara and took the sheathed blade out of the red carrier it was in. "Huh?! Do you?!"

"Rin-" Shiemi started but she didn't get far before the door was being slammed open. They all quickly shot to look at the door, Konekomaru jumping away from it, and watched as Yukio walked in. Behind his glasses, Yukio's eyes looked over the scene before him, the looks on their faces, the sword in Rin's hands, the matted tail out in the open, and Kuro standing protectively in front of Rin. His glasses flashed, hiding his eyes behind the lenses.

"Everyone except for Rin, get out of this room." He spoke, his voice strong and loud, cutting through the tense air.

"Mr. Okumura-!" Suguro began only to be interrupted.

"Now." His voice left no room for an argument.

Suguro's mouth shut with a clack and soon all but Rin and Kuro were scrambling for the door. Yukio watched his students leave before looking back at his brother. "I'll be back as soon as I can." He looked at the cat sidhe. "Watch him for me."

Before waiting for a response, Yukio turned around and left the room. As the door shut, Rin began to tremble harshly. Kurikara fell to the floor and Rin's arms came around himself in a sad attempt of a hug.

"Rin." Kuro spoke softly, gazing up at the half-demon sadly. "Rin...it will be ok."

Rin let out a sad chuckle in response to that, his hands clenching around his arms. "I should have seen this coming. I-I...really should have." A choked sound came from him. "I-I don't...don't know why I would have...expected a-anything different."

"Rin."

"I don't blame them." Rin growled. "I can't. The-They...god who knows...what Satan has done. M-More...than what...I know, probably." A sob left him. "I-It was nice...for a while." He turned his gaze upwards. "But...we should...have expected me to mess something up." He glanced at his matted tail and a wave of anger came over him along with his sorrow. "I should have just put up with it until they were gone, damnit!"

With a flood of anger rushing through him, one of his hands came free to swipe at the navy appendage. Fingers caught in the mats and Rin gave a cry at the rough tug that resulted from his actions sending a wave of pain up his tail.

"Rin, no!" Kuro cried, his own eyes tearing up at the sight of the other and his actions, quickly lept towards the exwire and gently push his hands away from the flicking appendage. Kuro then transformed into his larger form and curled himself around the half-demon. Rin fell forward and allowed himself to curl into the cat sidhe, his hands clenched around fistfuls of fur as he wept.

Yukio said no words as he led his students through the halls of the dorm building. He could tell they were burning with questions and emotions but he refused to allow any of them to speak before they reached a room far from his brother. Eventually, he led them to a room on the first floor and once they were all in the room, he closed the door and turned to them.

"Sit." He ordered and they were all quick to comply. Yukio remained in front of the door, refusing to give any of them the chance to leave before he decided they were done. "Now, I'm sure you all have questions and worries. I will tell you what you need to know in terms of what just occurred and you will listen. However, if you have any specific questions, I will hear them and decide how to answer. You have 30 seconds to ask your questions. After that, you will listen. Understood?"

He received many tense nods in return.

"Good. You may go."

"Is he really the son of Satan?!" Konekomaru exclaimed, fear running throughout his body and was obvious from a look at him.

"Yes."

"Are you also a half-demon then?" Suguro asked, his fists clenched.

"Technically speaking, yes. However, Satan's powers did not settle in my body so as of now, I am considered more human than demon. It was Rin who gained more demon genetics and abilities."

"And he's been attending our classes as a half-demon this whole time!?" Konekomaru cried. "Satan's spawn has been with us this whole time?!" At his words, Yukio shot a glare at his student, quickly silencing.

"If you all calm down, I can easily explain the situation and perhaps give you something to think about."

"What is there to think about?!" Konekomaru asked, fear still fueling his responses rather than his mind. "He's Satan's son!"

"Would you shut up!" Izumo snapped from her seat where she sat with her arms crossed. "If you think about it for a second, you'd remember so is Mr. Okumura, and they only reason you're acting like this is because Rin has the demon portion. Who cares!? They're the same obviously, Rin just has a few extra features."

The room went silent as everyone stared at the purple-haired girl. She flushed under the attention, looking away with a huff.

"Thank you, Kamiki-san." Yukio said, a small smile appearing on his face.

Izumo huffed embarrassedly. "It's not like I really care or anything. I just want to know what's going on."

"Yes, right." Yukio sighed and took a deep breath. "The first thing you need to understand is Rin never knew he was a half-demon. Father Fujimoto had taken us in as children due to the fact he couldn't kill two innocent children who were sentenced to death for being born. At that time, Rin's powers had been sealed away in the kouma sword, also known as Kurikara-the sword he carries with him now. All the years before this, Rin had no idea he was a half-demon. He couldn't even see them like I could, so while I trained as an exorcist to protect him, Father Fujimoto and I kept this world hidden from him. However, the seal started to weaken and this past year, demons began hunting Rin down due to him being able to now access his powers."

Yukio paused for a moment before continuing. "I'm sure you have all heard about Father Fujimoto's death by now, how he as Paladin, was killed by Satan. That part is correct, but it's only a small detail in what happened. The day of his death, my brother had been tricked into following a demon, a demon king to be exact, and for the first time in years could see demons, use what little powers he could pull from the sword without opening it, and found out he was the son of Satan. That day, Father Fujimoto tried to get him safe, to keep him human, but was killed by Satan in an attempt to get to Rin." He left out the possession. There was no reason for them to know that part, especially if they would still hate Rin after this. Not when Rin still hated himself for it. "Rin, in an attempt to save our father-figure, drew the sword and threw away his human appearance and awakening his demon side. It was not enough however and Father Fujimoto died, but at least Satan did not get Rin.

"Sir Pheles offered Rin the option of death, having been sent when the death of Father Fujimoto reached the Order. Only he, with the exception of I and Shura at the time, knew of Rin's bloodline. He offered Rin death and Rin told him to teach him to be an exorcist to avenge our father's death. Sir Pheles accepted and here we are. I'm sure it's obvious as to why we kept Rin's abilities a secret, your reactions and other's from the past who have found out are good reasons for it. Even Shura reacted poorly before now."

Yukio paused once again, looking around the room. Many of the faces had changed. They no longer just showed fear and shock. Those emotions were still there, but there was something new to their looks that, while he couldn't identify it, took it for what it was.

"I'm not telling this to guilt you or to shame you for your actions." Yukio said, continuing. "You're actions are completely understandable and I will not hold it against any of you if you wish to cut ties with my brother or if you are only willing to work with him as a teammate, if even that. What I will tell you is this is for you to understand at the very least. Understand that Rin is as new to this as you are now, only he's had a few more months to try to adapt. Understand that he is not a threat and that even if he became one, Shura and I will protect you and take care of my brother in such a case." He knew that needed to be said, that they still all had that thought in their mind that Rin will hurt them when Rin would never do it on purpose.

Of course, he had one last thing to say as well.

"However, should you decide to cut your friendship with my brother, I will say this. If you think you can get away with harassing him or hurting him anymore than a broken friendship will, you will have to deal with me. You are my students, so I will protect you, but I'm not afraid to discipline you either. Rin is also my student, and more than that, he is my brother. If you hurt him for no other reason than out of spite and fear, I will act." His glasses flashed at that as he sent a glare to each of his students.

He let silence sit in the air for a bit, letting his words soak themselves in before nodding. "Alright. I believe we are done for the day. If you would all please leave, that would be much appreciated. I will see you all in class tomorrow." With that, he opened the door and motioned for them to get up and leave. They moved stiffly and shakily. Shiemi was the last one to linger a bit, shooting a worried look at Yukio. With a gentle smile and a gesture with his head, she turned to leave, head and eyes down.

Once they were all gone, Yukio swiftly made his way towards their bedroom, wanting to check on his brother as soon as possible. He softly opened the door with a soft call of his twin's name, only to find Rin passed out with Kuro wrapped around him. He could see the tear tracks on his brother's cheeks and the hands clutching the cat sidhe's fur. With a sigh, he closed the door and made his way over to where the brush for his brother's tail had long since been abandoned. Picking it up, he moved back to sit besides the two demons, Kuro only briefly opening an eye to glance at him before closing it once more and snuggling closer to Rin.

Yukio gently picked up his brother's matted tail, knowing after many times of helping his brother with similar situations how to hold it and brush it. He moved slowly and softly, hoping not to wake his brother as a soft, broken purr reached his ears.

"I'm sorry."

Yukio didn't jump as Rin's soft voice reached his ears, only glancing up to look at where the navy-haired boy's face was pressed into the cat sidhe's fur before continuing with the tail.

"What for?"

"I messed up." Rin said, his voice soft and broken, no longer having the energy to sob. "I...I got caught and now they know…"

Yukio hummed. "I suppose. Of course, I should have seen this happening with the mission and I could have helped keep them away for you."

Rin only hummed back. "I guess. Oh well, now...now they know..." He was quiet for a few seconds before speaking once more. "Do...do I have to stop going to class with them now? Will I be taught seperate or even at all?

"Now why would you think that? Of course you're still going to class, idiot. You can't use this as an excuse to get out of it." Yukio attempted to make a joke to lift his brother's spirits but it didn't seem to do anything as Rin continued as if he hadn't heard the last part of Yukio's reply.

"They're all scared of me now. I don't want to cause them any trouble… or-or make them uncomfortable or anything...I-" Turns out he wasn't out of tears yet. A loud sob cut him off and Rin raised his hand to try and muffle it now that he had an audience that wasn't Kuro.

Yukio's eyes softened and he put down the brush and Rin's newly silky tail. "Oh, Nii-san." He whispered as he pulled Rin into his arms with Kuro, once more awake, shifted to encircle both brothers. Yukio tucked Rin's head under his chin, thankful for his brother's smaller frame, as Rin continued to sob and apologize and curse. "It'll be alright. I've got you."

Yukio continued to hold Rin and whisper sweet words to him until the other once again passed out from the stress of the situation.

"I'm here for you Nii-san."

So that was that! Obviously I didn't do the whole TOOTB but I'm sure you guys can see in the beginning the same parts. SO yeah, if you enjoy TootB and this au, keep an eye out the second chapter of the au, the sequel, and maybe? more? maybe? I don't know about this third part.

Feel free to comment or anything else.

Until next time! :D