Disclaimer: I don't own Gundam Wing or Harry Potter. I do own Hikaru, Triton, Meilan, Solo, James, and Millardo.

Genre: Fantasy/ Humor

Rating: PG-13

Warning: Yaoi, Yuri, Shonen-ai, Shojo-ai, boy/boy, girl/girl pairings. Mpreg… maybe… I haven't decided yet. Mentions of it though. Relena bashing.

Notes: Alternate Universe, timeline-what-timeline, Gundam Wing/ Harry Potter fusion. This is sixteen years after endless waltz and one year after Harry Potter and the Order of the Phoenix. Sirius did not fall through the veil, and the story has other AU parts that will be explained.

Pairings: 1/3, 2/4/5, Zechs/ Noin, Relena/ Dorothy, Sirius/ Remus, Harry/ Draco, Hermione/ Ron, Hikaru/ Solo, Triton/ James, Meilan/ Millardo, Blaise/ Ginny.

Summary: What happens when Hikaru and Triton Yuy-Barton bring their friends from school home for the summer? And what if those friends happened to bring their parents? What happens when Harry Potter and his friends meet Heero Yuy and the other ex-Gundam pilots? With Voldemort still lurking in the bowels and five new teachers this is likely to be an interesting year for the Wizarding World.

Harry Potter and the Angels of War

Chapter Seven: Dragon Rage and Arithmatic

As soon as the sixth year students walked into Defense Against the Dark Arts they knew that this year would be very different than the others. Straight off the bat was the fact that their teacher seemed to be a sleep in his chair. They shuffled in, some gawking openly at the Chinese professor's display and took their seats. Wufei remained in his meditative trance, clearing his mind for what was to come.

Meilan stopped hesitantly before her father, not daring to break his concentration. "Yes Mei?" Wufei asked without opening his eyes, arms crossed over his chest and one leg crossed over the other in a comfortable position.

"Father… May I please speak with you later?" Meilan asked softly. Wufei opened his onyx eyes to gaze at his only daughter. His lips twitched up in the corners and he bowed his head in ascent.

"Of course. Get to your seat." He said it in the gentle tone he only used with his 'family'. Meilan bowed respectfully before hurriedly taking her seat next to Millardo. The bell rang and Wufei got to his feet and walked around his desk. He leaned against it and watched his class silently until it got quiet. "One minute. That is how long it took you to be quiet, and that is how long you will be staying with me after class." The class let out groans. "Would you prefer two?" It went silent. Wufei nodded and straightened. "You are up to speed with Western creatures, spells, curses, and magic. But you know nothing about the East."

"And are you going to show us?" Blaise drawled. Wufei turned his onyx gaze to the boy and stared him down. Once Blaise averted his eyes the Chinese man snorted something that sounded surprisingly like 'weak' before turning back to his class.

"Eastern magic is nothing like Western magic. All of you could point your wands at me and cast the killing curse on me and never hit me once." He leveled his class with the seriousness he often used to impose on Duo during the war. "Does anyone know the difference between Western and Eastern magic? Hermione?"

"Western magic uses the magic that is inside of all things, which is outside of the wizard; it also, in most cases, calls for the use of a wand. Eastern magic uses the power inside of the wizard and normally does not call for the use of a wand." Hermione answered.

"Correct. Eastern magic revolves around fighting and your ability to control the spiritual magic that you already posses inside of you. But, contrary to popular belief, you don't need to be a wizard to use this. Any martial artist already knows how to tap into their inner strength. By Halloween all of you should be able to control your energy enough to do this." Wufei raised his right hand palm up and formed a glowing yellow ball of energy. He closed his hand into a fist and it disappeared. His class gaped at him, though Solo raised his hand. "Yes Solo?"

"Excuse me father but what about Meilan, Millardo, James, Triton, Hikaru, and I?" He asked softly.

"We will talk later Solo." Wufei told his oldest son. Solo bowed his head in respect and became quiet. Wufei went back to what he was saying. "In the next class we will be starting meditation and clearing your mind. After that is down we will begin the physical training. Magic will only get you so far, what happens if you loose your wand? What then? Are you just going to be weak and grovel at the feet of your opponent? After the Christmas break we will begin mock fights and battles as we will team up with the tactics class. If you are taking this class consider yourself lucky that you will get the practice." He paused and looked around the room again.

"How do we know you even know how to fight?" Blaise drawled. Wufei turned to him.

"Hm, so Heero was right." Wufei remarked looking straight into the eyes of the boy. He seemed to look straight into the boy's soul. Finally he gave a smirk and nodded. "I don't have to prove anything to you until you become stronger. Once you all come to the stage where you are ready to learn the true art of Eastern magic than I will be able to prove myself. Besides, I know one of the best fighters in this world and I am sure I will be able to convince him to spar with me." Wufei's eyes glinted in obvious excitement at the prospect. "Now open your books and read the first chapter. Your homework for the next class is to go to the library and pick up one book on spirit energy. You may begin now."

He went back to his seat and sat down, opening up an old rolled up papyrus and reading through the Chinese symbols as his class began on their reading assignment. Yup, Defense would never be the same after that year.

The students gulped as they walked into tactics class the next day and saw Heero sitting at the front desk reading through papers. Today was finally the day that the infamous Professor Heero Yuy would be teaching them. Hikaru silently walked up to the front of the room and waited until his father acknowledged him. Heero looked up questioningly.

"Tou-san can I talk to you after class?" Hikaru asked quietly.

"Sure," Heero answered just as softly. "Daijoubu desu ka?" (A/N: Are you all right?)

"Genki desu." Hikaru answered hurriedly. (I'm fine.)

"Tri-kun?" Heero asked again, worry reflecting deep in the Prussian depths as he said the old nickname he had given to his oldest son.

"Iie." Hikaru answered.

"Okay, I'll talk to you later than." Heero said softly. Hikaru nodded and quickly took his seat next to his friends. Heero looked back at his documents until the bell rang. He waited a few more moments before standing up and perching at the edge of the desk facing the students.

"Go easy on 'em Ro." Duo remarked as he and Quatre made to leave the room. "They aren't used to dealing with the 'Almighty I-can-fix-my-own-broken-leg Yuy' yet."

"Hn." Heero muttered and rolled his eyes as the braided man winked at him and dragged his husband outside to find Wufei so the three could spend some 'quality' time together. Heero waited until they were gone and spent that time sizing up the students behind his expressionless mask. Finally he spoke, and though his voice wasn't very loud it held a note of command in it.

"Before we start, how many of you are muggle born, were raised in a muggle family, or have a muggle parent or close relative?" Heero asked. A few tentative hands were raised.

"What does it matter?" Blaise drawled out. He had been a quiet kid. Really he had. But then his sister had passed away the year before and his entire attitude had changed.

"It matters because it does." Heero answered blandly without sparing Blaise a glance. "For those of you who just raised your hands that means you were pulled out of muggle schools or didn't even attend muggle schools until you were in the sixth grade correct? No Solo I don't want you to answer this question." The teen's mouth closed with an audible click.

"Yes." A girl said shyly.

"That means you stopped at regular math? You didn't get into Pre-algebra or higher?" Heero asked. There were nods and he resisted the urge to blow his bangs out of his face in frustration.

"What does it matter?" Blaise asked again. There were nods of agreement.

"It matters because before you can get to what Quatre wants to teach you, you need to learn a little bit of Geometry, Trigonometry, Algebra 2, and Physics." Heero answered darkly. "And I," his face darkened to match his voice, "unfortunately for you, am the only one with experience in teaching this."

"Wait! We have to learn muggle things?" Blaise asked in outrage. A lot of the Slytherins yelled out in irritation.

"I'm going to be straight up with you right now." Heero said and it went silent. "I don't give a damn if you disrespect me. I don't give a damn if you shout and yell throughout the entire class. If I must I'll put a charm on your desk so you won't hold up the other students in this class. If you miss what I teach, or don't ask questions then you're the one with the grades to show for it not me."

"Big lecture there." Blaise remarked. Heero ignored him.

"All right then. These are pretests just to see how much math you know. It will not be graded but you should still try your best. This is so that I can help you, if you leave the entire thing blank I will assume you know nothing and start you learning how to count from one to one hundred. Is that clear?" There were nods. "Good." Heero flicked his wrist and a stack of papers sitting on his desk floated off so that one landed before each student. "You have forty-five minutes to complete the test. If you get stuck on one problem skip it and continue o-"

"Why do we need to know this?" Blaise interrupted. Heero quickly counted to ten in Japanese, French, Spanish, Latin, Greek, Chinese, and Arabic before answering.

"Magic will only get you so far." Heero said, unknowingly repeating what Wufei had said earlier. "Here's in example of why you need to know this type of math. Lets say that your enemy is shooting curses at you from above and is invisible from magic. Now lets say that no tracking spells work on them. The only way to find out where they are is to find the angle of the trajectory of the spell. By finding the angle at which it's fired, the rate at which it flies, and the type of spell used you should be able to pinpoint the location of your foe to the millimeter." He paused to let that sink in. "You have forty-five minutes. Begin."

He went back to sitting in the chair at the front of the room and corrected papers from the earlier classes. The scratching of quills on parchment were the only sounds in the room. Surprisingly to those who weren't raised around them, Meilan, Triton, Hikaru, and James finished first. Then came Milliardo, Hermione, and then Solo who was terrible at math like Duo was. Heero motioned for them to bring their papers up and he got started on grading those too.

He read over a few of Solo's answers and blinked before looking up and raising an eyebrow at his 'nephew'. Solo blushed and Heero shook his head. His eyes glinted with amusement though and his mouth lifted in one corner. He wrote something on Solo's paper before going on to the next one. Students finished at different times so he got all of them graded and handed back within the period.

"Well, you aren't as brain dead as some of the other classes." Heero remarked. "Note, that is probably going to be the only compliment you will hear me from me again." He let that sink in and then continued. "There is a lot to cover in a short amount of time, those of you who learned this already might as well get practice." Heero waved his hand again and printed worksheets landed on each of the students' desks.

"That is your homework, you may start on it now. If you need help raise your hand and I will come around and help you. If many of you ask the same question I will solve it on the board. Solo, you aren't allowed to ask any of your fathers for help. If you need help than please ask me." Solo sighed and nodded. "Good. You can start."

"How do I know you're even good at this math stuff anyway?" Blaise asked haughtily. Heero grabbed a thick book from his desk and walked over and placed it on Blaise's desk.

"Pick any problem in that book." Heero remarked. Blaise did as asked and Heero flicked his wrist so the problem was written on the board. It was a complicated problem with a lot of funny curvy lines and symbols and numbers. Heero walked to the board and picked up a piece of chalk. "Turn to the page with the answer on it." Heero remarked and Blaise did as asked.

Heero looked at the problem for a few seconds before his hand began to fly across the chalkboard. Within seconds it was covered with his tiny and neat handwriting. After five minutes he pushed that chalkboard to the side and wrote on the next one. After about twenty minutes he had covered all four chalkboards and was on the very bottom of the fourth. He finally wrote down a single number and circled it before stepping back from the board. He stepped away to show his answer, though Blaise couldn't see as Ron's head was in the way. "What was the answer?" Heero asked.

"1.327564138" Blaise answered. Ron had moved in shock and Blaise blinked in equal shock. Heero had come to that exact number and had written it on the board.

"I know my fair share of math Mr. Zabini." Heero remarked casually as he erased the chalkboards. Just as he finished the bell rang.