Disclaimer: I do not own Attack on Titan, that right belongs to Hajime Isayama; nor do I own InuYasha, that right belongs to the talented Rumiko Takahashi. I do own the crazy Idea that I am putting the character through.

Author's Notes: So, the title is actually the name of the Theme Song from Neon Genesis Evangelion, and what inspired this whole story. I hope you all enjoyed this update!

Levi felt the skin between his eyes pinch with the start of another headache. It had been only three days since the fiasco with the damnable woman and the child, who was her adoptive son. He had not appreciated being in that little circle to prove a point and being forcibly compelled to tell the truth and his inner thoughts. Death wouldn't be good enough for that damn woman. Who he found was not in her cell. Nor was Jaeger.

Lips pulling down into a frown he was pretty sure was going to become permanent, Levi made his way up from the dungeon. He noted that there was hardly anyone around, which was rather curious, as the halls at this time were usually filled with those going to their duties for the day. Narrowing his eyes, Levi continued down the halls. Eventually, he came to the double doors that led to the courtyard. Where the sounds of murmuring were coming from.

Picking up his pace, Levi made his way out the door and towards where a group of people were gathered around the training grounds. And from the looks of it, all the people who should be doing the morning duties or training. Especially his squad. So, without hesitation, he pushed his way through the crowd, coming out next to none other than Commander Erwin. But that was instantly put to the side as the sight he saw.

In the center of the training grounds were the damn woman and her son. And he wasn't sure about the style of hand to hand being used, but it was clear they were fighting or sparring at the least. But from the serious looks on their faces, they were most definitely fighting. And it looked almost like a deadly choreographed dance. His attention now focused as he watched as the boy, Shippo, grabbed Kagome's foot as she kicked, green eyes flashing as he smiled.

Only to watch as Kagome jumped up, twisting her body and swinging her other foot at his head while arching her body backward and placing her hands on the ground, further twisting her body. Forcing the boy to let go and skip back. From there, they just circled each other. Just start over with the hand to hand combat, with the occasional kick placed in. Neither giving in, testing, gauging, attacking.

The minutes ticked by as he watched and realized that there was a level of skill that was being displayed that was not usually shown by how the woman moved. Making Levi think that she was either a damn good actress at pretending to be a total incompetent klutz or that when she was focused entirely that she had an instinct. Then it was over with a well-placed kick, sending the woman flying towards a group of people that had Mikasa, Armin, and of course, Jaeger. Who he noted put a reasonable distance between him and Kagome.

Something he found amusing, as the woman couldn't hide her emotions very well. That action, while subconscious, was a survival instinct in the brat because her powers as they found out allowed for her to detect Jaeger. Meaning she could have warned them about Anne, the female Titan. But she had a reason for not doing so and having only seen the girl in passing. That had set their nerves on edges. Making Kagome a person to watch, after clearly telling them all they could go fuck themselves, she would not be used as a fucking detector again. Which had set off the boy, and that odd two-tailed cat?

Kagome had gotten up early enough for her to spar with Shippo. And had been very careful not to wake up Erin, who she was a bit hurt by. But it was to be expected. She was a threat to him. Then there was the whole thing with Anne, the female Titan that had initially tried to take Eren while in the forest. But that was not her concern. Hell, it was only once that she'd come in contact with the young woman. The look she had given had only confirmed what Kagome had felt. Though it was not her place to interfere, and she refused to be used as a detector again.

So, she focused on honing her skills in the martial area, using Shippo's knowledge as well as what the Jewel supplied her. Her senses had picked up those that were now gathered around them, watching — giving her an odd thrill as she kept up her steady stream of attacking the young Kitsune before her. A smile on her face when she blocked only to be sent flying.

"Crap, mama... you alright?"

Standing up, she dusted herself off, she smiled and waved a hand at him. Their sparring sessions served as training for him to control and measure his growing demonic strength, so he could better blend in with the humans, that her talisman she'd made for him. His tail and pointed ears, and little fox feet were hidden to those without spiritual ability, which was fucking everyone in this world.

Turning, she looked over to Rīdā(leader) Erwin, only to pause and lift an eyebrow at seeing Levi standing there. The man was practically the bane of her existence. She wasn't surprised that the man could hold a grudge. Of course, she more or less deserved it. She was tilting her head to the side, smiling widely at the two.

"Mama, are we going to continue with the next set?"

This had her looking at her son, eyes narrowing for but a second as a familiar cough brought her attention back to the two men. She was lifting an eyebrow in silent question, as she kept her gaze pointedly on Erwin.

"What type of Hand to hand is that?" Erwin asked. "And what does he mean by next set?"

Smiling, Kagome rolled her shoulders and raised a hand and flicked her fingers at Shippo, silently telling him to grab what they'd need.

"That was called Aikido, or the way of harmony with Ki and mixed with Jujutsu, meaning soft skills. It is a close combat style that can disarm and disable. Using your opponent's own body against them if done right," she explained and enjoying the gleam that came to Erwin's eyes.

"Okay, Mama, I got them," Shippo called out.

She didn't take her eyes away from the men before her, as she watched their eyes go wide at seeing her son carrying actual weapons. His sword that had appeared when they arrived in this world. And her weapon, a shakujō that had a rather nasty little trick to it.

"This is the second set. We train with live weapons. Is that a problem Rīdā(Leader)?" she asked, though her gaze dropped from Erwin to Levi.

"No, but instead of sparring with your son, why not put yourself again one of our own?" Erwin asked. "You may choose your partner."

Her answer was a small nod of her head as she held her hand out for her weapon, setting it down on the ground softly, enjoying the gentle chime of the bladed metal rings attached to its tips. The cold, polished black metal of the staff hummed in her hands. Her eyes never leaving Levi's as he glared back at her.

"Captain Yowamushi (coward), how about it? I hear that you are good with a sword or two?" she asked. She is watching him twitch at her lack of use of his name.

The soft snicker from Shippo had her cutting a sharp glance to silence him. It had taken a bit of explaining, but he agreed that she had the right to call him those names. More so, since he didn't seem to be smart enough male to understand that he shouldn't be pissing her off further. Though, Shippo had been surprised that she hadn't castrated Levi when he had barged in on her in the shower, seeing her nude. Especially with the conditioning she had from Miroku and the many other perverts in the feudal era. Like the monkey owning Nobu Nobunaga.

"... fine." was all the reply from Levi.

Erwin had been a bit shocked when he took his early morning stroll. The noises from one of the training grounds, that should have been unused, had drawn him. There he saw both Kagome and her son moving through a series of stretches and fluid movements that he had never seen before. Only to watch as they suddenly started attacking each other. It was apparent that neither was out to hurt the other, indicating it was a sparring match. He had never seen anything like this before. It fascinated him.

And as the morning wore on, more and more people gathered around. And not just from the Survey squad. No, the Military Police and a few of the other factions. All were watching the spectacle. So, he was not too surprised when Levi eventually showed up, since it was well past the time when both Kagome and Eren were to report for their duties for the day. And the way that his Captain didn't speak just watched said he was also intrigued.

So, the moment he heard Kagome tell the boy, her son, to get the stuff for the next set, he had spoken up. And now he was watching as Levi, and she seemed to circle each other, before darting in exchanging a few blows. Levi was dangerous; he knew that better than anyone. The man was not a living legend for a reason. He grew up in the Undercity, had been trained to survive and kill. His swordsmanship didn't end at killing the Titans, no it had been perfected in other ways, hence his particular style of using the swords.

"I wonder if he will make Mama take him seriously?"

At those words, Erwin looked down at the red-headed boy. Who smiled up at him. Only to have his attention brought back to the two now attacking each other. The sparks that shot off the pole as Levi's swords came down let Erwin know that it was metal, as he watched Kagome twist the shaft and pushing away from her body. Sending Levi back. Just to have Levi bring one blade down in an arc, while the other came from the side.

What happened had Erwin's eyebrows jumping upon his forehead. She blocked the downward strike, and stepped into Levi's personal space, rolling her body until her back was pressing against his Captain's chest, before slamming a sandaled foot back into his shin. She was causing Levi to hiss in surprise and pain. Then she was moving out of his space and glaring at him.

"You should take me seriously, or you will lose some of that famed credit," Kagome snipped, just loud enough to be heard.

Watching as the air around Levi changed, as his stance shifted, dropping a bit wider, lowering him to the ground. This had Erwin tensing until he heard Shippo mutter something about Kagome that he had not entirely understood. Then the two were rushing in and exchanging blow after blow in quick succession. Eventually, and he had expected this, Levi began to push Kagome back. He was overpowering her. Then it happened, she was barely able to dodge both of the blades, and the sound of cloth being sliced was heard.

"Oh!"

It was a simple exclamation from the girl, and Erwin was about to call the fight in Levi's favor. Only to be stopped by a hand on his elbow. With a glance down, he saw the boy shake his head before pointing at the training field. When he looked back, he saw that Kagome had shrugged the white top off, revealing a bandaged wrapped torso. It went down into the strange dark blue pants she called Hakama.

"Good. Let's make this a more even playing field, shall we?"

Erwin knew that the look on his face matched the one on not just Levi's at that comment, but those gathered. Then with a soft chime of the rings from the top of the weapon, Erwin watched as it was split in two, revealing a thin, well-crafted blad on the lower half as it slid from the shaft of the polearm, which Kagome flicked outwards as if testing the weight now in her left hand while rolling her right wrist, causing those rings to chime louder.

"Your mother is versed in fighting with two weapons? Why did she not use it from the outset?" he asked softly, not taking his eyes from the two now exchanging quick, precise, and borderline deadly blows.

"When you fight someone and are unsure of their skill, would you use your full ability first? Giving up your strengths and weakness immediately?" Shippo asked back. "That would be foolish. A sage warrior taught her that lesson."

Realizing the wisdom of the statements and the knowledge behind the questions, Erwin didn't say anything in response. He knew their story. The fact that they had fought a lot. But Kagome had never stated that she could use a polearm, let alone a sword. And now it was evident that Kagome had some skill, though it was nowhere near Levi's, she was holding her own. And he would dare to say that his friend looked like he might be enjoying himself. It was not often that he could do something like this, not with the weight of his responsibilities, always bearing down on him.

It was apparent to him as they jumped away from each other that they were going to decide the winner with the next blow. Their body's looking relaxed, but to his trained eyes, each was nothing but coiled tension ready to spring. Then in the next second, they were rushing towards each other. A loud clang rents the air as they stood toe to toe, metal hissing against metal as they each refused to give in before Kagome stepped back and bowed her head in defeat.

Though when she turned and looked at him, the smile on her lips made her look angelic, while her blue eyes flashed with a mocking cruelness that took the breath from his lungs. His eyes looked from her as she walked towards him, to Levi, only to go wide as he pressed his lips together to keep from laughing. Seeing why she had that look on her face. Levi had yet to notice it, but in that last attack, she had sliced his Cravat just a few inches below the knot. Which he figured was fair play since he sliced through her shirt.

Shaking his head, Erwin knew he would be talking to her more about her hand to hand fighting and that unique way of fighting with her sword and staff. Already his quick mind was factoring in how that style could better help his people stay alive. Because he noted that it held balance while shifting the body's weight at a moment's notice. The precision that was used in each blow was dangerous. Then he realized that the other factions now knew about Kagome and her son, meaning it would not be able to keep her a secret any longer. But he could use that to his advantage.

With a sly smile, Erwin tilted his head up in congratulations to Levi before turning and heading to his office. There was much he would need to do. And not just his work. It was almost time for him to send the Survey Squad on another mission. One requested by the higher-ups.

TBC!