Sooo, here is the second chapter! Oh, and I should probably tell you that Yukio and Rin never grew up together, Rin grew up in Gehennah, but Yukio and Rin have met before and they do know that they are brothers and whatnot. Since they didn't grow up together Rin and Yukio have slightly different personalities, especially Rin. But Rin won't be in this chapter, he'll probably be in the next chapter or maybe the one after that.

Blue Exorcist is owned by Kazue Kato and Harry Potter by J.k. Rowling. I do not own nothing except this story. (BTDUBZ please don't take that literally...)

Chapter 2- The first lesson

Today was Yukio's first Defence Against the Dark Arts lesson. He had given lessons to students before when he was a bit younger, but this was the first time he had to teach several classes a day, every day. This is also the first time he was teaching so many students. A full class for exorcist students were usually at most about eight. Now suddenly was teaching who knows how many students. He started to head for the Great Hall for breakfast, on his way there he saw the first year girl who ate enough for two armies walking like she was a zombie, he was guessing she was either really hungry or feeling sick from all the food she ate last night. He was betting on sick, she can't possibly be hungry yet. Then again, a certain someone had once proven him wrong about that one. That guy was like a freaking bottomless pit! When Yukio sat down at the staff table so he could have breakfast, he saw the redhead sit down at what he believed was the Gryffindor table and started eating like a caveman again. What the hell!? She was like a freaking bottomless pit!

Once again she got stares; Yukio reckoned she was going to be stared at lot for the next few school years since she definitely was an odd one. She almost reminded him of… Why was Yukio thinking of 'that' guy? He hated 'that' guy! 'He' was the most annoying thing he had ever met. But then again, he was related to 'that' guy, even though he hated admitting it. So in order to stop thinking about stupid things, Yukio decided to observe what the students were doing.

He saw several Gryffindor students making their way to where the redheaded cavewomen was sitting. A boy with red hair sat down next to the girl and started chatting like it's normal for a student from another house to sit at the Gryffindor table. The other people who were with the redhead boy just stared. Damnit! What the hell was it with these people and staring!? Eventually the Gryffindor students sat down like it was nothing. A redheaded girl that looked like she was in second year, and to almost alike boys with dark hair. Three redheads. Is having red hair a like a new fashion?

"Hugo! What on earth are you doing at the Hufflepuff table?!" Screamed the redheaded Slytherin student.

"This is the Gryffindor table Lily! You big dumb-dumb!" Yelled the one who Yukio assumed to be Hugo.

"No! It's obviously Hufflepuff! Because this is my house table!"

"Lily. You are in Slytherin. Not Hufflepuff or Gryffindor."

Suddenly Lily burst out in tears and ran away out of the hall. Hugo went chasing after her. As Hugo ran out he bumped into a blonde boy who was also part of the eating fiasco last night. Then the blonde boy did something that Yukio would never have expected, he punched Hugo in the face.

"Are you the one who made Lily cry you bastard Weasley!?"

"She does that sometimes! Now if you excuse me, I have to go chase after my cousin!"

"I won't let you! You're probably only gonna hurt her feelings more Weasley! You stupid excuse for a pureblood family. If you can even be called that anymore, last time I heard your father married that mudblood Hermione Granger!"

"I think you're forgetting the fact that Lily and I are cousins, meaning she is related to the very family you just insulted." There was suddenly a very dark aura around Hugo. The blonde kid didn't know how to respond to what Hugo just said. Instead he simply walked away without anything further to say about this situation. Blondie did have a strange expression on his face after that encounter with Hugo. Meanwhile Hugo ran after Lily again.

By the time Yukio finished his breakfast, Lily and Hugo finally returned, instead of sitting at the Gryffindor table again Lily went to sit at the Slytherin table and started eating like a caveman again, as if none of before happened. Lily just keeps reminding Yukio of 'that' person more and more. That can't be good, it's not that Yukio hated 'him', he just found 'him' incredibly annoying and that made Yukio dislike 'that' person a lot! Same daydreamy personality and oblivious to almost everything that happened around them, judging people too soon and saying things out loud that should be kept in one's head. Yukio then remembered that he still has a lesson to prepare for a class with… Well, the thing is he forgot what students he was having. But seeing it is the first lesson for every class he's having, all he'l' have to do is just set up so that the students would be able to receive their temptaints. Not hard at all!

Yukio started making his way to the classroom, while on his way he noticed that Lily was death-staring him. That can't good… Nothing good comes from being death-stared, especially by a young witch and for two very good reasons! One, she is a female of the human species and they are very dangerous especially when mad, so one does simply want to be on a woman's bad side. Two, she has magic powers that she does not yet know how to use making her even more dangerous. Great! Now Yukio was starting to become scared of his students! He decided to ignore the stare she was giving him which seems to be the best thing to do. When he made it to the classroom he started setting up for the lesson. Soon the students started filling up the classroom for their lesson. They were Gryffindor and Slytherin students. Well now that he had that new information all he still needed to know was what freaking year they were in! Well, that question was answered when Lily and that blonde kid walked in. First years! Great! Not with Lily in it though… Who knows what she could do to him? Eventually the class was filled up so Yukio decided to start the lesson, he was feeling pretty nervous seeing as this is the first time he's teaching a class of this size.

"Well, I'm assuming that this is everybody. Well anyway, my name's Yukio Okumura and as you can possibly tell by my accent and name and also probably by the way I look, I am not British or English or whatever. I'm Japanese. Any questions?" He regretted saying that as soon as he saw Lily put her hand up. Boy, was he sure thrilled! "Yes, Lily is it?"

"Yep! You got it right! How old are you?"

"I'm eighteen… Any more questions?" Once again Lily put her hand up.

"Do you have a girlfriend?"

"No. Any other questions?... Lily, you can put your hand down now."

"I don't want to."

"Fine then, what's your next question?"

"Why don't you have a girlfriend? I think you're cute even though I absolutely despise you!"

"Well thank you for the compliment. I don't have a girlfriend because I said no when she asked me."

"Why?"

"Two reasons. One, She's my best friend and two, recently I have been finding women scary for some weird reason. End of discussion and no more questions!"

Suddenly the classroom doors swung open and Hugo walked through looking really confused and exhausted.

"I'm sorry; I got lost and couldn't find the classroom!"

"I don't blame you. Sit down."

"Did I miss anything?"

"Just a bunch of personal questions, the actual lesson is starting now. Who here can tell me what a temptaint is?" Lily's hand shot right up as Yukio said this.

"A temptaint is an injury received directly from a demon. Usually after receiving a temptaint a human gains the ability to see demons."

"Good! Now here's a trick one! What type of demon?"

"Any type of demon, as long as it has demon blood."

"Great! Now where do demons come from?"

"Uhm, isn't it hell?"

"Close, but no… Demons come from a place known as Gehenna which is basically a mirror of the world we live in, known as Assiah. The beings in these two worlds aren't meant to enter each other's worlds, however, demons found a way to enter Assiah and they do so by possessing things in Assiah. From the dust around you to plants and even human beings. Demons that possess humans are usually very strong and therefore dangerous. In this subject you will be learning how to defend yourselves against demons and also how to fight them. Does anybody know the proper terminology for a person that fight demons?" Yukio expected Lily to put her hand up again but was surprised to see that she didn't. She seems to know quite a lot about this subject and will most likely do really well. Instead, Hugo put his hand up.

"The correct terminology for a person that exorcises demons is called an Exorcist."

"How do Exorcists exorcise demons?"

"There are several ways and for that you get different types of exorcists who have each studied one way or more, each of these exorcists who use different ways have special names. Aria, Doctor, Dragoon, Tamer and Knight. Aria specialise in chants and fatal verses that can be harmful to demons, Doctors specialise in healing temptaints, Dragoons use heavy weaponry such as guns, Tamers summon demons known as familiars and Knights use a Holy sword."

"Wow! I'm impressed, 10 points to Gryffindor, also 10 points to Slytherin for Lily answering correctly before. Who here has received a temptaint before?" Only one person put their hand up, she was in Gryffindor and she had silver hair golden eyes, definitely an unusual combination. "For those of you haven't had a temptaint yet you will now receive one if you don't mind. If you do mind getting a temptaint you are free to leave the room and see the teacher outside about just taking regular Defence Against the Dark Arts. I believe that there will be small study group eventually, but I highly recommend taking this class just in case. This is also a good career choice if you're thinking about going in this direction one day, however, no one is forcing you, the choice is entirely yours. If you wish to leave, please do so now."

As Yukio expected several students got up and left the room, most of them being Slytherins. Lily and blondie decided to stay behind with a few other people from their house. Altogether there were about seven Slytherins and, well, Yukio couldn't be bothered to count how many Gryffindors there were since most of them decided to stay. Only about five of them left. Yukio took out a vile containing red liquid that looked suspiciously like blood.

"Well then, let's start. What I have in this vile here is rotten animal blood that I will dilute with some milk. If you're wondering why, it is because there are low level demons here in this room known as hobgoblins. They aren't very dangerous and can be taken care of fairly easily so you don't have to worry. All that this formula will do is attract a few hobgoblins. Now if you are ready to begin please raise your hand." The whole class raised their hands. Seeing this, Yukio started to prepare the formula and soon the class was full of hobgoblins that only Yukio and the Silver haired girl could see. The hobgoblins started attacking a few of the students, but they were only small scratches, some students who were scratched turned to look if they could see the demons already, some seemed to be able to see them but others still couldn't. Yukio then took out his two pistols and made sure they were filled with bullets and started shooting the hobgoblins after he was sure that all of the students received a temptaint. They were funny looking things. The majority of their round body was green and they had strange red patterns all over with only two arms. They had funny looking noses that looked as if they have been squashed upwards. Beneath the noses was their mouth that looked way too large in proportion to their bodies and their teeth were big and ugly. They had rather large eyes above their nose. There were about ten of these in the room before Yukio had shot them all gone.

"Now that that's over, come over here and I'll apply some first aid to those temptaints. Is there anyone here who didn't receive theirs? Everybody got one? Good! Oh and before I forget, don't worry if you can't see them yet. It takes some time with a few people. Also, if you feel a bit dizzy there's no need to worry about that, it's normal. But if it gets any worse just come to me or go to the hospital wing, whichever one's closer."

The students started making their way to Yukio so he could help treat their injuries. Soon after he treated them it was the end of the lesson and they all started making their way to the next class. Yukio thought he did quite well for his first try with such a big class, then he remembered he still has several more classes to go. Next was a third year class if he remembered right, that one also involved Gryffindor, he wasn't sure what other house was with them though. Probably Slytherin again.

He started cleaning up and preparing for the next class to make their appearance. Hopefully not very soon since he was exhausted…