WARNING : I am not a native speaker. One of my reasons to re-write this fict is because I want to practice my English even just a little. So, read it with a grain of salt and please enjoy yourself.


—OoOoO—

Jujutsu Kaisen by Gege Akutami

Boku No Hero Academia by Kohei Horikoshi

Genre : Action, Adventure, Friendship, and Little Bit Romance

Summary : What if the high-profile assassin, Zen'in Toji, was reincarnated in the world of heroes and villains? He who is never bound by the value of right or wrong, have to adapt in a world where justice is onliy divided into black and white. This is the story about one of the worst sinners ever, the story about Toji doing Toji's things as Yaoyorozu Toji.

Chapter 1: I Think God Messing With Me.


OoOoO—

"Your son's condition… is very difficult to explain, Yaoyorozu-sama."

"What do you mean? Isn't there a scientific explanation that can explain it, doctor?"

Two adults of different genders are in a room. The two sat opposite each other in their respective chairs and were only separated by a work desk. The person called Yaoyorozu was an adult woman in her early 30s. Meanwhile, the interlocutor, is a middle-aged man doctor whose upper head has been bald and only leaves hair on the sides.

"I have done many MRI tests and repeatedly studied various references. As a result, I can confirm that what happened to your son was not a phenomenon caused by a quirk."

"Don't be joking," the woman Yaoyorozu replied shrill, "Are you saying that such great physical strength was not caused by quirks? Are you going to say that my son is quirkless?"

"Please take it easy, Yaoyorozu-sama. Your son will confused if you can't control your emotions," replied the doctor while looking at the six-year-old boy sitting next to the 30-year-old mother.

The Yaoyorozu woman then caught her breath and looked at where her son was. Sure enough, her son looked at her in confusion and occasionally glanced around the room with a look that was hard to decipher.

"I have studied various references worldwide, and it took me even a month to conclude," repeated the doctor, "This is indeed a bizarre phenomenon. I am 100% sure that this is the first case in the world."

"Stop with this nonsense and explain what happened to my son's body," the boy's mother interrupted quickly.

The doctor sighed and replied, "People who are endowed with quirks can be seen on the ring finger on their feet and can also be observed through their mass in muscle fibers and bone density. When a people awakens their quirk for the first time, their muscle fibers will gradually strengthen and provide a certain density to withstand the weight of the quirk. This is why professional heroes often train their physics to increase the mass in their muscle fibers."

The doctor paused for a few seconds to catch his breath before resuming.

"You can make an analogy like quirk is an application that requires a computer with certain specifications so that it can run the application properly. while the human body is a computer that runs the application itself."

"So, what does that have to do with my son?" asked the woman impatient.

"Your son, Toji-kun, has a very high muscle fiber and bone density, even higher than an adult people. This is unreasonable considering that Toji-kun is only six years old. Moreover, Toji-kun doesn't show any signs of possessing a quirk."

The doctor paused again and tried to reorganize his words to provide an explanation as simple and accurate as possible.

"In short, with very high muscle fiber and bone density, it seems to give the impression that Toji-kun's body is actually preparing to awaken his own quirk. However, for whatever reason, the quirk didn't wake up and left only the high-spec body that Toji-kun currently has."

"So, you are saying that my son's body is like a high-spec computer that doesn't have any applications on it?" asked the boy's mother.

"Yes. With a very high mass of muscle fiber and bone density, it makes sense that Toji-kun has the physical strength of a superhuman. Plus, from the MRI tests we did, the walls of Toji-kun's heart and lungs are also very thick, which automatically makes Toji-kun has very high stamina. At this stage, I wonder whether your son's neuron cells and brain also mutated or not."

The Yaoyorozu woman who didn't accept the doctor's last sentence became furious. With a loud bang, she vented all her anger.

"Don't even think about making my son as the subject of your research, bastard."

The doctor who was in charge of checking the condition of the Yaoyorozu's son was surprised when he saw the anger of his interlocutor. To lessen his nervousness, he quickly adjusted his collar.

"Forgive my impudence. I never thought about making Toji-kun a research subject or something. I wouldn't dare mess with the Yaoyorozu family. Moreover, I have a child. So, I understand what it is like to see a child being an experimental subject," replied the doctor nervous, "As I said, Toji-kun's quirkless condition is unusual and a first in the world. At first glance, it would appear that Toji-kun has a mutated quirk of superhuman strength, but in reality, he doesn't."

Yaoyorozu Chiyoko, the 30-year-old mother, took a deep breath to reduce all the tension she had. She looked to her right, where her little boy was sitting. Witnessing her son's inexplicable gaze, Yaoyorozu Chiyoko's motherly side became domineering and subconsciously made her gently stroke her son's hair.

"Do not worry. No one will dare touch you, my son."

In the eyes of the two adults, the little boy named Yaoyorozu Toji might look like a child who doesn't understand what they are talking about. However, without the two of them knowing, Toji listened to everything with the calculations and deductions in his head.

'Damn, what the hell happened?' Toji thought, who was still trying to understand his surroundings, 'I should have died when I stabbed Playful Cloud into my head. However, how did I get here? Yaoyorozu? Quirk? What the hell is that?'

In fact, it didn't take long for the confusion he was in. When he was sitting on the chair, suddenly all his memories from his past life rushed into his brain. Those memories were mixed with his current life memories. Mixing two memories from two different lives causes an unbearable headache.

If he was not Zen'in Toji, he was sure that he would have passed out the first time he felt the pain in his head.

Toji recalled his last moments when he died for the second time. The memory was obvious, meetings with the only son he had as deadly machine doll and suicide in peace after he witness his teenage son.

He wanted to say that what he was experiencing now was a dream. However, the sensation when he inhaled the air, the sound of his heartbeat, and the pungent smell of medicines he could smell indicated that everything he was experiencing right now was a reality.

Still trying to understand what really happened, Toji dives again into the layers of his brain that hold all his memories.

His current self was neither Fushiguro nor Zen'in Toji but Yaoyorozu Toji. He is the woman's second child sitting next to him now, Yaoyorozu Chiyoko. Although the second child, based on his memories, his age is not far different from the person who should be his older sister, Yaoyorozu Momo. In fact, their births were only separated by a matter of minutes. In other words, Yaoyorozu Momo was his twin sister.

He comes from the Yaoyorozu family, a prominent conglomerate family in the Japan with its business center located in Musutafu City.

'Musutafu? Never heard of that city's name before.'

There are many new things that Toji does not know in this new life. Even though he still living in Japan, Japan in this life feels very different from the Japan he knew. Not only Japan but also the whole world. Even if a significant event changes the world, Toji doesn't find a missing link that connects his present life with his past life.

In addition, the Shibuya incident, which became the place of Toji's resurrection at that time, should be a major incident that will make the existence of sorcerers and curses known to the whole world. Unfortunately, there is no history of the bloody event curse spirits in the memory of Yaoyorozu Toji's body.

In other words, there was a high possibility that he was living in a different world from his former world. Even though this multi-universe concept that popped into his head sounded ridiculous, he couldn't ignore that everything in this world was very different from his world in the past.

'I don't know if sorcerers and curses also exist in this world or not. However, it can be said that most people in this world have a unique power called quirks,' thought Toji, who was trying to draw a conclusion, 'And from all the possibilities, I become a quirkless and have an anomaly that makes me have a superhuman strength? Seriously, again? Even in the new world, this damn heavenly restriction is still attached to me?'

Although Toji couldn't follow the direction of the conversation between the two adults at first, he could at least draw a conclusion from the doctor's explanation.

Even though it was different from his past, this matter was clear enough for him. In exchange for something called a quirk that he should has, Toji gains a superhuman body and enhancements to his senses. His current body was not as strong as when he was at his peak state. However, he can feel the effects of the heavenly restriction physically gifted on his body. In fact, based on some reasons that he can't explain, Toji felt that he would be able to surpass his peak state in his past life one day.

"I don't think there is anything more to discuss." said Toji's new mother, who stood up and looked at him gently, "You must be tired, right? Let's go home. Or do you want to buy some cakes first, Toji-kun?"

Responding to Chiyoko's words, Toji nodded slowly and followed his mother's footsteps from behind. However, just as Chiyoko was about to reach the doorknob, the woman with two children stopped and looked back at the doctor.

"My threat was not just a bluff. If my son's data is spread or used as research material, you will reap what you sow."

Without bothering to wait for the doctor's reply, Chiyoko walked away while holding her son's tiny hand.

Meanwhile for Toji, he actually didn't like being treated like a child like this. After all, inside him was a man of the same mental age as his new mother.

However, Yaoyorozu Toji's thoughts told him that the grown woman was really his mother and that what he was doing now was normal. This confusion occurs because the memories between Zen'in Toji and Yaoyorozu Toji overlap and try to dominate each other.

At first, Toji thought the soul from his past life occupied an empty shell in the form of Yaoyorozu Toji's body, who had been abandoned by the old owner. However, upon reflection, the souls of Zen'in Toji and Yaoyorozu Toji were one and the same soul that experienced two different lives. In other words, what Toji is experiencing right now is really a reincarnation. However, reincarnation should erase all memories of his past life so that the soul does not experience a confusion. Unfortunately, in Toji's case, he actually remembers his past life.

The proof that this soul was the same from his past life lay in how his body began adapting to the heavenly restriction. If the memory is correct, Yaoyorozu Toji's body began to undergo changes such as increasing physical strength one month ago. In other words, since then, this body has tried to adapt to Toji's soul, which has been bound by the heavenly restriction.

And according to him, there is only one theory that can explain this event.

'During this month, my soul tried to rewrite and synchronize with this body to form the perfect heavenly restriction like the one I had before. If you compare it, this event is almost the same as when that damn granny called my body information during the Shibuya incident. At that time, the information of my body can dominate other people's soul so that I can regain my consciousness. In this my new life case, my soul is trying to dominate this body to give me my old body that is compatible with my soul. As such, I can recall my old memories through my soul.'

Having a theory doesn't mean you can solve the problem. The main problem Toji has right now is adaptation. This body is too small to accommodate Toji's immense physical strength. This causes the lack control of his strength. However, Toji was confident that this body and his soul would completely finish synchronizing and regain his past peak strength in the next few years alone.

So, he was not sure what he should do next when his body had regained all its strength again. If this was his old self, Toji wouldn't have missed this opportunity to push himself beyond his peak state. However, following his death at the hands of Gojou Satoru and his encounter with his son makes him see things he never realized when he was alive.

In essence, his new life is not just about strength but more about what kind of life he will live. Will he remain Zen'in Toji or live a whole new life as Yaoyorozu Toji?


OoOoO—

Several days had passed since Toji regained his memories of his past life. From then on, Toji tried hard to adapt to this world. In terms of knowledge, this world was not much different from the world he used to be. Except for the more sophisticated technology of this world and the culture of heroism—including the quirk—inherent in society, there was nothing else Toji needed to know.

However, when it comes to the results of his adaptation process, Toji has a unique conclusion that becomes the resolution of his new life.

'Keep being Zen'in Toji? Starting a whole new life as Yaoyorozu Toji? Bullshit. I be what I want to be. No matter where it is, I will do whatever I want. If there is a rule that binds me, it is a rule that I made myself. I will not be bound by my past as Zen'in Toji, nor will limit my new life as Yaoyorozu Toji. I am Toji, whichever it is, I don't care.'

Because of that resolution, Toji now lying on his bed while playing RPG games on his game console.

When Toji looks back at his memories before he could recall his past life, his instincts as Toji were very attached to this body. People in this house think that he was a delinquent who will do whatever he likes, not to mention beating someone if that person makes him angry. In fact, this body used to intentionally create a long vertical cut at the right corner of his lips.

If based on his memory, he did it because it would look cool. However, when Toji thought about it again, he, still unaware of his past life, instinctively tried to recall himself by cutting the right corner of his lips vertically.

Toji's enjoyment of playing the game was interrupted when he heard the sound of a door opening loudly, which was soon accompanied by the shrill scream of a shrill little girl's voice.

"Toji-kun~~!"

The former sorcerer killer let out a tired sigh when he heard that shrill scream.

"Stop screaming like an idiot, you brat," Toji cursed angrily.

"The name is Momo. I am not a brat, brat," said the girl nonchalantly and dashed into her twin's room.

Without needing to get permission from the room owner, Momo plugged a flash disk into one of the USB ports on the television in Toji's room. Then, the girl turned it on and arranged it so that the tv could play the video on the flash disk.

"If you want to watch something, watch it in your own room, brat,"

"Stop calling me a brat, brat! I don't like watching alone. You must accompany me," replied Momo, who immediately jumped onto Toji's bed, making the man furious.

Generally, Toji will not hesitate to beat or even kill people who are arbitrary to him. However, Yaoyorozu Momo is his twin sister. She was born a few minutes before him. All the memories of him and Momo before he regained his past memories were real. Even after he remembered who he really was, Toji still couldn't shake off a strange feeling that made him want to protect the girl.

However, Yaoyorozu Momo was a child who was still pure, still innocent. On the other hand, Yaoyorozu Toji—or in this case, Zen'in Toji—was one of the most feared assassins in his past life. The fishy smell of dried blood and tears was Toji's daily food. Because of that, subconsciously, the former sorcerer killer tried drawn a line that separated himself from his sister.

"You are watching this again? Seriously, aren't you bored? My eyes are even sick of seeing how that idiot is wearing his underwear outside."

"Don't call him that. He is All Might, Japan's number 1 hero!"

"Underwear is worn outside, and the curtain is worn on his back. Are you sure he is not Japan's number 1 idiot? He should cover his face, so people don't see how stupid he looks when he wears clothes like that with confidence."

"Toji-kun, you evil, you are cruel. You have absolutely no idea that heroes regard costumes to symbolize their victory."

"If the victory symbol alone looks like a clown, no wonder that villains keep popping up non-stop," Toji said in a condescending tone, "Besides, the villains who wear plain clothes actually look cooler than the heroes."

Momo, who heard Toji's reply, could only puff out her cheeks and looked at Toji annoyed, while trying to hold back her tears. She then looked away from Toji and watched the video on the television with her mouth pursed.

Seeing this, Toji sighed and followed Momo, who watched the video.

"You know we have different tastes in this, don't you?" asked Toji, who was just ignored by Momo, "If you know, why do you keep forcing yourself to watch this with me?"

"Because Toji-kun hasn't been playing with me lately," Momo replied, trembling with tears, "Besides, I want to be a hero. However, I also want to be a hero together with Toji-kun."

"But I don't like being a hero."

Whether it was the one before he regained his past memories or not, Toji still insists that he doesn't like being a hero.

His past life was like a shit, so he had to fight really hard to live and be recognized. He lived like trash by being a gigolo and gambling just to earn money. Before or after he left the Zen'in clan, Toji had never felt he had a home that could warmly welcome him when he came home. No, he had it once, but it shattered like a sandcastle swept away by the waves when his first son was born.

However, in his current life, Toji can live comfortably. He has loving parents, a wealthy family, and a cute twin sister. To him, this house was so warm that he could call it "home" even though his parents were both busy doing business. He also has a lot of money, so he doesn't have to live by tricking women and killing just to get a penny.

You could say this is the ideal life that Toji has been dreaming of. If he had worked hard in the past just to live and be recognized for his existence, he had got it all in his current life. In short, Toji just wanted to rest and enjoy what he could enjoy at the moment.

"Didn't you promise to protect me and stay with me when you beat up the kid who mocked me back then?" Momo asked in a sad tone.

Toji didn't answer right away. He tried to dive to the bottom of his memory to confirm the incident that Momo was referring to. And yes, Toji remembered that he had made that promise when they were still in kindergarten before Toji regained the memories of his past life.

'Was not that happened a year ago when we were five? Is a child's memory really this sharp?'

Toji sighed and replied, "That doesn't mean I have to be a hero, does it? Besides, your quirk is great. You can definitely do a lot of things even without my help."

"Being a hero wouldn't be fun without Toji-kun."

"And because it is not fun so I don't want to be a hero, you idiot," replied Toji, who was again greeted with a sullen look by Momo, "Besides, the only ones I want to protect are you, mom and dad. I don't care about other people even if their bodies are scattered on the streets."

No matter how hard Momo asked, Toji refused. The twins did not budge even though one of them was exhausted. From the beginning, Toji was a person who wouldn't make a move without a clear motivation. He would kill if he was paid dearly or his life was in danger. He will fuck women if he gets paid for it.

On top of that, Toji doesn't have any hatred for the villains or the slightest pity for the victims. Moreover, as a person who was once a high-profile criminal, Toji is more sympathetic to certain villains than to heroes who mostly work just for fame.

Hence, a Zen'in Toji, now Yaoyorozu Toji, will neither be a hero nor a villain unless one of them lands its hands on his family. Or in other words, he doesn't care whether it is a hero or a villain, Toji will destroy anyone who threatens his little peace.

To Be Continued—


Author's Note: Hello, meet me again in my new story. Actually, I didn't think to make a new story anyway. However, this is an old idea I used to have, and it got even more tingling my head after reading some fics about Toji.

Well, here I am opening the story with a kid version of Toji and Momo. However, I don't plan on writing this kid version of them into chapters because I don't really like writing about toddlers myself. So, the next chapter will probably go directly to Toji Middle School, and the following few chapters will connect with the main timeline of BNHA.

Besides that, I need to emphasize that there will be no incest here. Toji and Momo's relationship is purely a sibling relationship. Also, I slightly changed the background of the Yaoyorozu family. If the canon says that Momo's parents are pro heroes, here I make it a business family. Why? The quirk creation that the Yaoyorozu family has makes more sense for them to become businessmen or even inventors. Momo's parents may not have used creation for mass production, but the quirk could be used to create prototype equipment that would be further researched, developed and mass-produced using machines.

Finally, I hope you guys like this story, and please give your review about this chapter because your review is my encouragement. Thank you very much to those who have read the story, and see you in the next chapter.