A/N So with encouragement from AlastorGrim and a few other authors I have posted another MHA crossover. It's set up a little differently than this one but I think it will be enjoyable for everyone. I am starting classes this week so updates are going to much slower than before. Hope you enjoy the new chapter.

Time skip in this chapter

Izuku's POV

Sighing he turned away from the park as he grabbed his bag. Physically he was worn out from the sparring match with Chun. Still, it was a good learning experience. Just like everything was with his master.

As he picked up his bag he felt eyes upon him. They did not feel friendly and it made his instincts scream danger. Instead of picking up his bag he straightened and took another ki pellet.

Turning he found Bakugo standing there. Instinctively his foot slipped back in preparation for a fight as he took the ki pellet. If Bakugo wanted to fight he would no longer take it lying down.

Bakugo asked his voice low and gruff but without its usual anger, "What was that, Deku?"

Izuku responded in a low growl, "None of your business Bakugo," there was a flinch from the older boy, "You always called me useless. Well, I found someone who believes in me. Now get out of my way."

"That's not an answer Deku. I want an actual answer," snapped the older boy's anger lacing his tone.

Izuku snarled, "I don't owe you anything. My life doesn't belong to you or anyone else. What I do with it is my choice."

Izuku expected Bakugo to attack with those words. For a moment it seemed like he would. The tensing of his muscles was a telltale sign of an impending attack.

Then the muscles loosened and Bakugo took a step back. Izuku's own body let the tension in his muscles relax slightly. This wasnt what he was expecting. Bakugo must have seen a lot if he was willing to back off.

Did he think he wasnt a match at his current level? Or was it that it was too open of a spot?

The second option was more likely than the first. Bakugo wasnt a person to back down from a fight. Even if he knew he would lose.

Then the other turned away without another word to him. Anger practically radiated off of the ash blond. It was the weirdest interaction between the two of them he could remember. Still, he would not allow such thoughts and interactions to change him. He had to continue his preparations.

Four months later

Izuku stood proudly looking at the cleared beach. It took him less than half of the time that All Might thought it would. All Might in his civilian form stood looking at the beach in surprise.

The ki technique he created definitely had a hand in it. The technique only sped up his movements. It didnt take away the weight of picking up and moving items.

Izuku's body was much stronger than before. As was his ki that caused Chun to actually take him seriously in their spars. Landing an attack could actually hurt his mentor. Chun had to remind him only once that he had to give it his all. Otherwise, he might hesitate in a real fight. So he obeyed his master.

Every fight every time he gave all he had. Never holding back in the slightest to prove himself.

His work had not only paid off in training with All Might but with his master.

Flashback

Izuku leaned against his master's apartment building. They had run here after their final spar of the night. He was absolutely exhausted and sweat was pouring off of him.

The door next to where he was leaning opened. Shiho a dark-haired woman with grey eyes came out. She had a duffle bag sling over her shoulder and a box in her hands. The box radiated powerful condensed ki. It was nothing like he had ever felt before.

A girl followed her closely. She was only four and a half feet tall with blond hair and piercing blue eyes. Her eyes piercing into Izuku's very soul as their gazes met.

Chun said drawing his attention, "Brat this is Lady Sesol of the Sunwoo clan. The reason why I came to this town was to secure her away from the Murim Alliance's hold. I should be taking her back with me but unforeseen circumstances are preventing it. This is a lot to put on your shoulders but I need to leave her with someone I trust. Just for a little while. No one knows that you are my disciple so that should protect you. If you do not want to do this I will understand."

"I'll do it," he interrupted before Chun could go any further.

Chun had taken him from the darkest depths of his own heart. Without the man, he would have long since killed himself. Still, he had to remind himself to keep fighting that he wasnt weak. That killing himself would only prove the bullies right.

To even have the chance to pay it back in the smallest way and he would jump at it. Chun was putting faith in their training and bond. He would do as he was asked even at the risk of his own life.

Chun sighed, "That's what I thought you would say. Despite the fact that you don't even know the full details yet."

Izuku only raised his chin in answer. Every day they trained together his confidence in himself had grown. His abilities still needed work but even without his master there he would continue to improve.

He was startled when Chun suddenly threw a phone at him, "It's not convenient for me to leave your training like this. If it was up to me I'd be staying longer to help you improve further. Almost a year though was far longer than I thought we would get. So take this. There are videos in it that will help you with your training. Watch them in order and you will grow stronger."

"Yes, sir!"

He pocketed the phone and Chun continued, "If you remember from your Murim history lessons. The Sunwoo clan is one the oldest and most powerful of the clans. They hold one of the ten Grandmasters. The only reason why they are apart of the Murim Alliance was that Lady Sesol here was being held, hostage. The group I'm with liberated her from their clutches. For reasons that I cannot disclose she can't come with us for the moment. As soon as I can I will send a blond swordsman by the of Takeshi and his mountain of a partner Dimitri. It shouldn't be longer than two months."

Izuku nodded as he replied, "I'll keep her safe sir. I promise."

"I know you will kid," sighed Chun.

There was something different in his master's eyes at that moment. The look was far softer than anything he had seen before.

There was a cough from Shiho breaking the moment. She said pushing the box into his hands, "Here. This is what's known as the Il-Wol Sin-Dan also called the One Moon Divine pill. Take this once you have finished your training with All Might and Sesol is back with us. It will expand your ki and center to unimaginable lengths. Think of it as a thank you gift from me."

All he could do was nod dumbly. No wonder he could feel the monstrous ki coming off of it. It would definitely come in handy later.

A blond-haired man pulled up in a car and his teacher got in the back. It was then he realized this would probably be the last he saw of them. Even with the promise to return there was no guarantee he would.

As if sensing his thoughts Chun said, "Midoriya Izuku," Izuku stiffened in response to his name, "Continue to live your life as you do now. If you go back to being depressed without me. Then even if I come back I won't acknowledge you as my disciple."

Izuku squared his shoulders as he said resolutely, "Right. Good luck to all of you."

Then like that they were gone. It was like they had never been there in the first place.

End of flashback

Sesol had been staying at his house since that day. His explanation to his mother was that she was a friend from school. That her family wasnt safe to stay with at the moment. It was only with the promise that no one was looking for her that she was allowed to stay.

Izuku slept on the couch so that she could have his bed. So far she was comfortable and he continually brought her books to read. To his surprise and embarrassment, she had also taken to reading his quirk notebooks.

Her body was weak in a way that he had never seen before. She wasn't able to talk much so they communicated through sign language. It was something he had picked up in elementary school when one of his classmates was mute. They had been one of the few people who did not see him as useless for being quirkless. In the end, though they moved away leaving him alone once more.

Tomorrow started his weekend and he decided he would take Sesol to the beach. She had been stuck in his house since she couldn't leave without him. If she did then she would be in danger. Murim would still be looking for as she was considered the princess.

All Might said drawing him from his thoughts, "You did well young Midoriya. I thought it would take you right up until the Yuuei entrance exams. You are finally ready to receive One for All."

Izuku stretched his neck and back carefully. His body showing none of the stains that he felt. He would get One of All and it would work well with his ki.

All Might plucked a hair from his head and said, "To get my power you must consume some of my DNA. So swallow this hair and let it digest. Later we will begin training you on how to use it."

He took the hair from the man with a doubtful look. This was the most insane thing he had done. Eat a hair and get a quirk. Life didn't work that way.

The earnest look in the blond-haired man's eyes told a different story. No matter what Izuku believed this man honestly thought it was true. All Might wasnt one to lie, his time with the man told him that much.

Izuku put the hair in his mouth and swallowed. He didnt feel any different. If it was anything like ki it would take some time.

All Might said with a small smile, "Go to your classes. We will begin training once the hair has time to digest."

Izuku replied stretching a little more, "Then I will see you this afternoon."

Classes were as boring as ever. At lunch though there was an influx of power within his body. It wasnt ki but something more. Something that wasn't his own.

It melded and changed the moment it hit his ki center. He could feel it interacting with the purified ki reserves. Then it delved deeper as if looking for something.

From within his body, something dark and powerful reacted. It reacted to the intrusive power that All Might gave him. The power reared its head and howled.

Izuku's left hand slammed over the wrist of his right. Pressing into the lightning blue band and black wolf. The mark that appeared on his skin on his tenth birthday.

That mark was what made Yoochun leave. The moment his original master had seen it he left. Left Izuku to wallow in his pain.

Under his skin, the ki and what lay within it surged forward and out of his body. Around him, the tables and people were thrown back. The only one who kept his feet was Bakugo. Others were thrown into walls or slammed into the ground.

Then just as swiftly as it started his ki settled back within his body.

Bakugo snarled his hands shaking, "What the hell was that?"

Izuku answered honestly, "I don't know."