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Chapter 2: Tatsumaki and Fubuki

~Third POV~

[Time Skip 6 Months.]

At someone's family home a couple of scientists were talking to a family with green hair as they handed them a suitcase filled with more than millions of dollars worth as they spoke, "Thank you very much for helping us with this miss and mister for selling us your daughter. We hope to better understand the Esper you see…"

What was happening was that the parents sold off their daughter to a group of scientists wanting to experiment on her because of the unnatural psychic abilities she possesses in her head.

That person happened to be a 7-year-old Tatsumaki as she was currently heartbroken knowing that her parents sold her off.

In the original timeline of events is that her psychic abilities eventually led to her being taken away from her adopted family at the age of seven by scientists interested in studying her powers.

Her parents were given money for complying as she was tested on by the scientists because of her extraordinary powers.

They rewarded her with candy and toys for cooperation but denied her requests to go outside. Moreover, the scientists locked her up in a cell whenever she wouldn't use her powers.

The parents nodded happily as that made Tatsumaki sad about that as she was taken inside a truck unaware of what fate had in store as she was too focused on what was happening to her to notice that Saito was video recording the whole thing.

As he did, he texted it over to Bang-sensei to see the situation…

Seeing that the back of the storage trunk was open a smile crept across his face as he began to skillfully go inside along with his short wooden katana from master swordsman Nichirin that he began training his swordsmanship on.

*Vroom*

With that, the truck took away Tatsumaki as they put her in the back of a storage truck as she was left to think to herself of what was going to happen.

A slide cap opens as the scientists driving expressed a fake smile at her as one of them began to express gratitude about their gain to her, "Don't worry there Tatsumaki will be sure to take good care of you… so long as you provide the results everything will be ok…"

Tatsumaki realized that she needed to make sure she self-preserved herself of what the men in lab coats are going to do…

*Rumble*

That was when the two were caught off guard by a sleeping Saito Yagami as he yawns at this waking up seeing the emerald lit eyes of Tatsumaki as he responds, "Ahh~ Man that was a good nap… hey there the name is Saito Yagami, and yours…"

Tatsumaki kindly straighten herself out as she began to express still having some manners as she began to speak shyly, "Uh… the name is Tatsumaki T- Just Tatsumaki-san Yagami-kun…"

Saito smiles at this scene taking Tatsumaki to blush but then pales as the scientist begins to act high and mighty as he furrows his eyes brows at Saito, "You! You damn brat how dare you come inside our storage van just after we bought the girl for research purposes and experimentations wait till your parents hear – "

That was when he was cut off by Saito interrupting him in a childish voice mocking the adult with his words as his phone was already recording everything from the beginning, "Really? I'm the one in trouble when you are doing human trafficking? Buying a little girl who's my age and wanting to 'experiment' on her. You are disgusting pedophiles! Worst scum there is! Go die in horny jail!"

The scientist's eyes widen at this as he saw Saito's phone as a smirk expressed on his face as Tatsumaki looked at the scientist with worry with the recording taking that as well.

At that moment another old and deep voice responded registering inside the phone as he spoke quite coldly making even Saito flinch, "Now… what's this I hear about human trafficking… you sorry scientists are good as mine. Also, Yagami-kun make sure to guard the little missy ok for dear old sensei?"

His eyes widen at that as he went ahead to hug Tatsumaki at what's to come making her blush profusely at this until she realized what was happening next…

"<Water Stream Encampment>!"

*CRACK*

*SMASH*

Exactly at that moment, everything from the truck was destroyed once the Hero Bang entered the field as he destroyed everything in its path as Saito was guarding Tatsumaki at that point.

Until Bang finally got the two into his <Water Stream Encampment> he got the two and rushed out of the way onto the top of the building as the truck destroyed everything in an explosion as well as killing off the scientist that was involved with the human trafficking Tatsumaki once he received news from his student.

Saito on the other hand has some bruises from the debris that Bang destroyed he let go of the hug, but she didn't make Saito blush at that.

Bang takes his phone as he was still blushing from Tatsumaki not letting him go as a soft chuckle escaped his mouth, "Hahaha… kids these days are surely full of it huh? To think one of my students would be so loved struck this soon. Hahaha…!"

Listening to his words Tatsumaki opens her eyes as she lets goes of Saito as he playfully tries to laugh it off as he spoke to her with some concern, "Haha… sorry about that. Bang-sensei is usually like that at times so… Tatsumaki-chan was it? How are you feeling now are you hurt anywhere?"

Tatsumaki looks at herself and shook her head but noticed some purple bruises on Saito as she asked feeling guilty for letting him get hurt, "No… I'm ok but what about you though? Don't those hurt?"

Saito took the chance to look at his bruises as he shrugs it off already knowing he took worse before as he tried to calm down Tatsumaki, "Don't worry about it. Honestly, I'm used to this kind of thing with old bastard Bang and Nichirin -Ack!"

It was that moment that Saito was suddenly gripped at the head as Bang kindly but slow grip his head in the kindest tone possible to him, "Oh? Are bold to say that while I'm here kid? I'll make sure to ask Nichirin to double your efforts alright?"

Saito pales at this as Bang sighs his breath releasing him looking at Tatsumaki as he asked in concern since he knew what was going on, "Sigh… so then Tatsumaki-chan do you have any other family relatives that could take you?"

She shook her head no as Bang sighs at this as he pats her head as he talked to her in a soft tone as he rubs her head, "In that case Tatsumaki-chan how about staying at my place for the time being. I may not look like much but I'm an incredibly wealthy sensei with a dojo. I can take care of you for the time being ok?"

Before she nods her head, she glances at Saito remembering that he called him sensei, and then nodded to him and respectfully bowed her head to him, "Thank you very much for taking me to Bang-san… I promise not to be useless to you – "

*Smack*

One smack at her head as she rubs the spot where she was struck with confusion apparent in her eyes as Bang responds wisely to her in a kind tone, "Tatsumaki-chan no need for being useful or useless stuff with me. Just be yourself and will get along just fine although I would bet you get to see Yagami-kun training all time Hahaha!"

Tatsumaki blushed at that as Saito looked the other way still having the bodies of kids being emotional was part of the description. Bang looked at the two and smiled as he was recalled that Tatsumaki awakened her psychic abilities as he felt, even more, happier than before.

Not only has he got his student Saito Yagami the hard trooper he also managed to get the awakened psychic user in the world as this will boost his martial arts dojo name and make sure to rub it in his brother Bomb face when he gets the chance.

Today was a great day for Bang and his wonder student's life getting him more fame to rub on his brother's face.

[Time Skip 3 Years.]

3 years have come and gone in the world of One Punch Man making both Saito Yagami and Tatsumaki 10 years old ever since Tatsumaki was 'luckily' saved by Saito and the hero Bang from a group of rogue scientists.

During the 3 years, Saito Yagami has been busy studying the martial arts from Bang and learned Swordsmanship from Nichirin after doubling his efforts once he heard from Bang he mocked the two.

They enjoyed the time giving Saito a beating through the use of training but he didn't complain as the results showed.

As for Tatsumaki, she has been learning to train her Esper powers as well as moral guidance from Bang discipline in the process while not being arrogant reminded of Bang teachings living under him.

Originally her personality was for Tatsumaki has a rather brash, moody, hotheaded, and impatient personality. She is disrespectful towards most people, especially to those she deems incompetent. She is completely intolerant to those she deems impertinent.

Due to Tatsumaki's confidence in her strength and Blast's influence, she has very independent tendencies which can lead to stubbornness as she believes that she cannot go on thinking that anyone will come and save her. This is seen as Tatsumaki refuses the help of Bang, Bomb, and Fubuki and temporarily binds them to prevent them from helping her.

But since she hasn't wasted her 3 years of her life in a lab she has been able to fully express herself and isn't afraid to ask for help as Saito asked for Bang's help in the past. Although a bit arrogant she is humble at times being reminded of Bang's instructions and mental disciplines.

As that was the case Saito and Tatsumaki both get to meet each other often when he has trained with Bang-sensei and Nichirin-sensei. All in all the meetings between the two have been steady like friends. Bang could even consider Tatsumaki as a daughter to him at times when he talks to her for a friendly game.

While Tatsumaki is more used to using her <Psychokinesis> as her main form of combat she picked up a few things from Bang as she knows a bit about the <Water Stream Rock Smashing Fist> as self-defense.

Bang almost laughed at that considering she has her <Psychokinesis> to help her through trouble as she is more common to use it. And speaking about parents despite Bang wanting Tatsumaki parent's to be arrested for being involved in human trafficking she disagreed with it for one simple reason...

Her little 2-year-old Fubuki sister...

The reason why was because her little sister Fubki at the time was 2 years old when she was taken at the age of 7 years old. She didn't want anything bad to happen to her but Bang reassured her to not worry.

...

...

After a few trials of the two Bang had full custody of Fubuki and his influence of being the master dojo and discipline in his students he managed to get Tatsumaki her sister back. By then Bang was considered the legal guardian of the two future psychic users.

This brought reassurance to the normal people who have seen Bang work and been his student in the very fact that unaware to Saito and Tatsumaki it was rigged with one of his students as the judge.

Similar to a famous karate school in Baki having eyes and ears everywhere.

It did make the masses calm as his one of the strongest and humble guys around and those foolish enough to try to take them away would get beat up by him.

After that Tatsumaki spent most time babying her little sister with joy present in her face as her parents are no longer around to pester them or bother them anymore. Saito was also allowed to meet a young Fubuki as he played around with her as well.

During the 3 years, he kept the relationship between the sisters as friends as he got closer to the two as friends for the time being as Tatsumaki soon discovered Fubuki talent as the same as her in using <Psychokinesis> at the age of 5 years old.

All three of them go to the same school in Z-City as they took their normal days of life with some monster attack happening every time once and while….

~Saito POV~

Sigh…

I have to admit that for the last 10 years have been doing well in me learning Bang techniques and Nichirin sword styles. I have worked my butt off learning their skills and absorbing everything they have.

But my relationship between the twins has been great despite Fubuki being a kid still at 5 years old. Still, though they have been doing quite well training their <Psychokinesis> with Tatsumaki babying her.

That was when my thoughts were cut off as I heard my teacher begin to call the day to end for today in a bored tone, "Alright students you are now done for today. Don't forget to do your homework by the end of the week. Oh, also don't forget to be careful of monster attacks."

*RING**RING*

That was when everyone got up from their seats as I pack my things as I got ahead to leave through the doors and searched around for… ah there she is.

Floating up in the air using a green coating of her <Psychokinesis> I see that Tatsumaki comes over to me as she spoke happily, "Ah! Saito-kun I see you already finished the class for today so od you… maybe want to come with me to Bang dojo…?"

I can see her blushing a bit as I nodded my head and joined her as I'm someone in this school that isn't freaked out about her powers. Quite honestly though the kids here a pretty spooked about her with her powers.

To me though I'm kind of jealous of her powers I don't envy her as I nodded and joined up with her along to go pick up her little sister.

As we went ahead to pick her up we see her getting bullied by some people as Fubuki is already being protected by her psychic barriers as Tatsumaki looks very angry at them as we hear the brats bully Fubuki, "Hey! Why don't you and your mean witch of a sister just leave our school already mon – "

*BAM*

Quickly using the art of <Instant Movement> and a punch to his face the bully was sent flying as he began to rub his face as I spoke with a smile shown, "Hey now, don't you know that bullying the kids of Bang ain't exactly cool my dude. But hey I feel extra violent today make me have a reason why don' ya?"

At that the kid saw me cracking my knuckles menacingly as they grew fearful as I pointed to my partner in crime Tatsumaki having her projectiles ready as I talked to them, "Or… you could face the wrath of the older sister… and by the way, I'm helping her so better skedaddle or else… Boo!"

At that they ran away like cowards as Tatsumaki took a careful look at Fubuki in concern in her voice, "Fubuki did those little brats did anything to you? Did you defend yourself properly?"

Fubuki nodded her head at this as tears were about to run across her face as she replied to Tatsumaki in assurance, "Uh Huh Onee-chan… I made sure to make barriers as we practiced see… Also thank you again Yagami-san for that…"

Patting her head at Fubuki who blushed at that as I smiled contently protecting cute things. What don't tell me that you never wanted to protect cute things before if you haven't then you can't be a real man of culture then.

Quotes by Blank from No Game No Life.

Tatsumaki nods proudly at her little sister as she strokes her ego a bit as she spoke to her calmly, "Just as expected of your Onee-chan to help you little Fubuki. Just remember I'll always be there for family ok?"

Fubuki then looked at her with stars in her eyes with awe as I playfully laughed at the interaction of the two of how different they are to their canon counterparts with this big deep of change and tutelage under Bang-sensei.

Their relationship in canon was honestly very weird and controlling honestly.

Tatsumaki's younger sister and fellow Esper Fubuki highly respects Tatsumaki but believes she would be on top if not for her and Sweet Mask in the future as Tatsumaki highly criticizes Fubuki for having followers and losing to Demonic Fan and Do-S but still saved her from both monsters.

Tatsumaki believes her actions make her a great sister and she is unaware of how strained her actions have made their relationship, all while Tatsumaki is also too proud to admit that she genuinely loves her younger sister.

Tatsumaki cares deeply about Fubuki, as she didn't wish for her little sister to participate in any battle believing that she could get hurt.

After seeing Fubuki's injuries for healing Genos, Tatsumaki was furious and immediately wanted to know who hurt her sister before she was corrected.

Though dismissive and believing that Fubuki can't possibly assist her in battle, Tatsumaki did show a moment of somberness when Fubuki declared that she wanted to save Tatsumaki as a hero and was momentarily happy at how her little sister has grown.

Glad to see that their personality of hers is being straightened out already and no need to worry about such a thing. Whew… at least having a canon version of her wouldn't be very much worth it in this world as I'll just yeet her ass away like a thot or Karens.

And nobody likes Karens.

But hey at least I won't have to worry much about that anyway and since this part is done the next thing I have to do now... survive till it's time for me to become OP soon enough but first some friendly times before it comes to that.

With that, I walked with the Esper sisters to their homes as we went ahead to Bang dojo.

---

A/N: Here's how the MC changed one aspect of another life for the better and possible waifus secured in the process. But remember guys the MC won't master all the fighting styles in a few months he has average skills and progress which takes years as well as mastering his own body in the process.

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