I am the Horseman of Conquest. I am the youngest of all of my siblings. For majority of my life, our eldest brother, War, was taking us on these journeys across dimensions where we would just be in several wars with entire races. At first, it was kind of exciting. I was born in the middle of a war and my siblings forced me to fight alongside them. It was all I knew for the first few thousand years of my life. It was only recently that I began paying attention to what we were really doing in these dimensions. I didn't want to do this anymore. 

I tried to leave my siblings, but War managed to find me and quite easily as well. He was the most intimidating and the strongest of all of my siblings. He showed no remorse for others and would only continue to get stronger from each and every war they were in. He was addicted to war. It was his drug you could say. 

He was one you wouldn't want to mess with. He was the greatest tactician of all of us and had us follow his plans. There were times where the second oldest of our siblings, Famine, took charge and created plans. No matter what, we were successful in taking over dimensions. It was just that War created plans that ran smoother than the rest of us. 

Famine was the nicest of my siblings. She was the only one that listened to me and wasn't nearly as intimidating as the rest. Well, she wasn't as intimidating as the others in appearance, but the powers she held could cause huge masses to grow weaker and weaker over time. While War could slay thousands, Famine could kick back, relax, and drink some lemonade while in the middle of a revolution. The species would dwindle in numbers once they entered her radius. The closer they got to her, the quicker they would die. Whether it was from their bodies getting dried out, disintegration, the classic death from hunger, or more. She could cause it without lifting a finger. She wasn't that strong in the physical department compared to the rest of us, but she was not one to be taken lightly. She rivalled War in power, but War had her beat in the physical department.

Death, the second youngest, was the least experienced of my siblings. With him, he simply wanted to see everything die. He was beyond malnourished. He was a complete skeleton. Famine told me he never ate and his powers caused his skin to decay over the first couple of years. To the point he became what he is now. A skeleton. He left skeletons in his path and only continued to grow stronger for all of the species that died in his path. They were far more intimidating than anyone else in appearance alone. After all, they were 30 meters tall and was a walking, talking skeleton with glowing green eyes carrying a scythe. What normal being wouldn't be intimidated by his appearance?

No matter how strong you were, you would at least tremble a little bit when in Death's presence. You would have to be a Horseman to not be intimidated by Death and even then, Death's size was something to make a young, inexperienced Horseman cower in fear if only for a little bit. 

Recently, my siblings decided to go and conquer a couple of dimensions, but they were connected with each other. The dimension War was going to conquer appeared to be filled with clouds and rainbows. The species appeared to have small wings and antennas on their head. Those were the most distinctive things about their appearance. It seemed that this dimension was completely pure and just by War's presence alone, he began tainting it. Every footstep he took, the clouds left an imprint of his feet, but in red. I figured what was going to be happening. He was going to corrupt the dimension. 

Famine went into a dimension that seemed relatively normal compared to most of the dimensions we've been through. The only thing unusual about this dimension was the fact that the whole dimension had its people walking upside down. The ground was where the sky should be and the gravity seemed to work to have the people continue to walk without falling into the sky since they were upside down. Guess everything was opposite there. As soon as she entered the dimension, she managed to find something to do. She caused people to dissipate  left and right with her powers. The police of this dimension tried to attack her, but their efforts were futile. 

Death was in a dimension where it seemed like a cave and people walked around with horns on their heads. They had bat-like wings and tails. The people didn't take it too kindly that Death showed up out of nowhere though and began breathing fire on him. They missed their mark though since he was all bones. There were plenty of spots for them to miss and have it just go right through him. He swiped his scythe at the people and several ended up dying just like that. I could see Death had a grin on his skeletal face. He did end up begin taking over the place. The cave-like structure began to turn green while he was fighting. The forces began to get bigger, stronger, and more beastly as he went on. Eventually, I saw full on dragons attacking Death. The cave actually even started to erode. 

At one point, I saw a portal open up. I saw a rock go through at one point and it didn't immediately pop right back out in worse condition. I sneaked over to see whether the rock was lingering in the portal or not. I didn't see any sight of the rock. Just a green and red portal. I smirked. Maybe now was my chance!

I looked over and saw Death still fighting and killing many beings causing him to continue growing stronger. He was completely distracted. He wouldn't know I was missing until it was too late. I leaped into the portal, but this one felt different from the others. I was falling and my body seemed to start changing. It began to get smaller and my hands began to alter into that of a little kid's own. Same for my arms, legs, and seemingly the rest of my body. Finally, when I stopped changing, I crashed on the ground. Which dimension this was I couldn't tell.

I picked myself up and climbed out of the crater I formed. What I saw in front of me shocked me as it seemed like some grotesque looking man in a suit was fighting a blonde haired man with an unusual hairstyle and getup. Then again, I've seen weirder. 

"This is your end All Might!" The one in the suit yelled. 

"We'll see about that All For One!" The one apparently named All Might responded. "United States of Smash!"

The All Might guy sucker punched All For One with so much force that it caused the ground to crack and the wind pressure created a twister! Oh my! 

That didn't mean the All Might guy was left unscathed. His nemesis as it appears managed to get a lucky shot in and hit him in one of his sides with that grotesque, disproportionate arm of his managing to severely wound him. 

All For One collapsed to the ground in a heap of blood while All Might was brought down to his knees from the punch to his side. He clutched that side in pain and he started coughing up blood himself. I've seen many fights in the thousands of years I've been alive and I've been able to tell which one was good and which one was bad. That's why I decided to go over to the one known as All Might and help him.

"W-Where did you come from young lad?" He asked, struggling to hold his coughs in as to not frighten me.

Poor soul. 

"From this day forward, you shall become my subordinate. You shall retain your free will and have a boost in strength until I call upon you to take action. Be grateful for your life shall be spared one known as All Might."

I spoke those words as I channeled energy into All Might causing his body to rapidly heal and his veins appeared all over glowing. I could hear him breathing heavily and his eyes glowing, but this was all part of the process. My process that is. I was the only sibling that had such an ability. It was highly valuable. 

"W-What did you do? Do you have a healing Quirk by chance?"

I shook my head no. 

"I don't even know what you mean by 'Quirk'. I just used one of my abilities as the Horseman of Conquest. Oh, and be sure to keep this a secret between the two of us unless I grant you permission to tell someone."

He seemed to have some doubts so I tried transforming back into my original state. Sure enough, it worked. Perhaps this was due to one of my abilities being Light Manipulation. 

I saw his eyes widen and in order to make sure he had absolutely no doubts, I showed him all of my memories. By then, he had absolutely no doubts. 

"Well, you have no records so I will have to work with some of the government agents for a bit in order to not raise any suspicion. I'll have it be that you are my adopted son. How does that sound?"

"That could work."

It would be a little weird with the fact I was several thousand years older than All Might, but we could make it work. Especially if I just stick to that kid form and grow like how the kids in this dimension grow. Piece of cake! I would mainly have to worry about my siblings finding me. Especially War. 

A/N: That's a wrap! How do you guys feel about this new story? Tell me in the comments below and let me know who you want Izuku to be shipped with in this story that is a female! No yaoi! No Dekubowl! So long as they are female, attractive, and alive, I can do it! Unless it's Nana. I can make her work as well. It doesn't matter which age they are unless its something like Recovery Girl or Eri. Since Mama Midoriya and Izuku aren't related in this story, we can even do that as well! Let me know what else you would like to see in this story! Besides that, Bionic-TitanX out!