One's Justice

Again, sorry for the long absence I had a bad case of writer's block, working two jobs at the same time and RL things, but I'm back with a new chapter. From now on, no more huge waits taking months, I'm over my blocks. Here, Izuku's training finally begins and Saitama breaks into his new role as a teacher. Also, a few things for the reviewers:

Guest: Thanks for the super move idea. I may use it with your permission, and I would like your thoughts on ideas I'll post in the future.

Benalien100: I am planning for the Boros arc to be more intense. And will post the rankings of Endeavor and Tornado here so everyone knows. Sweet mask will be in the story, but in a different capacity than your suggestion. I do think your idea's good though.

Iynxx: Blast isn't going to be another Endeavor, at least I'm going to try to differentiate the two of them from each other.

Scarease: Cool villain idea, I have ideas based on Dragon Ball z characters too.

Chapter 5

Saitama's Apartment

It was the next day after Inko gave Saitama and Izuku her permission for the bald hero to train her son in becoming more powerful than Izuku could ever imagine. Saitama got up from his bed, letting out a deep yawn before walking into his bathroom to brush his teeth. While brushing, his thoughts turned from deciding which new brand of toothpaste he would try out to how long it would take for Izuku to become as strong as him.

I got super strong in three years because my body's fully grown, but he's just kid. Will it take longer? Maybe the same length if I train him super hard? He thought. He decided to first give Izuku the exercises he used and quickly changed out of his pajamas and into his trademark yellow costume, then his stomach began to growl. Mmm. I should eat breakfast first. Probably have some eggs and pancake stuff so I can eat here. He thought.

Saitama headed to his kitchen and brought out the ingredients he was thinking about from their spots, as he doesn't want to spend money unnecessarily on restaurant breakfast items. Their stuff's prices have gotten a few yen higher. Stupid rip-offs. He thought of the fast food places he would visit occasionally.

He finished cooking his breakfast and started to think as he chowed down. Maybe I should teach Izuku some super moves one day. But what? Don't think he'll wanna copy my own, will he? Saitama has all sorts of finishing moves such as his Killing Move Serious Series Serious Punch that can very well cause shockwaves across the entire planet. He will have to talk to Izuku at some point about the super moves he would like to create, but that's for another time. Then he turned the television on while eating and saw a reporter in his forties giving a news report. They man stood in front of the Hero Association's headquarters, with an even 20 heroes in their own costumes standing side by side each other.

"Today, the Hero Association welcomes a new wave of heroes into its organization following their graduation from numerous Hero Academies such as U.A High School. These newcomers want to give a special thanks to all their teachers who supported them in their trials and triumphs during their hero education. Heroes who enter the Association by graduating approved academies are always given special honors, more specifically a ceremony hosted by The Number One Hero, All Might."

The mentioned hero, in his trademark suit and smile, shook each of the hands starting with the first hero on the right end. Each time he spoke words of congratulations and welcome to every individual hero.

Hmm. He's a cool guy, but having that smile all the time reminds me of what my mom always told me about face freeze. Kinda creepy too. Saitama thought. After finishing, he turned off the television, cleaned his plates and headed off to Izuku's home to start his training.

Izuku's apartment

Izuku woke up coincidentally at the same time as Saitama by his alarm clock. Knowing today was the day his training would begin, he eagerly rose out of bed and sped out of his room.

"Good morning dear!" His mother Inko greeted him with a smile while making pancakes.

"Good morning mom!" Izuku replied. As soon as he sat down, his mother gently put down a plate of 3 pancakes covered with honey and a square of butter on top along with a cup of orange juice. Izuku licked his lips in anticipation and started digging in while is mother joined in with her own plate of pancakes and orange juice cup, happy to see her boy enjoying her food.

"So, today's the big day, huh?" She asked.

"Uh-hu! I really can't wait!" He replied with excitement, but them but on a slightly worried face which made Inko frown, wondering what was bothering Izuku. "I hope I don't end up disappointing Saitama, he's going through a lot of trouble to help me, a kid he just met yesterday."

Inko's face went back to a smile, then she got up, walked over to her son and put her hands on his shoulders. Izuku looked up at her in curiosity. "Sweetie, don't worry. I just know that you're going to do great! And besides, Saitama seems like a very patient and understanding person. I'm sure he won't be bothered by any mistakes or struggles on your part." She then embraced him in a tender hug. "You just listen to all his advice and apply yourself like you always do and everything will work out fine."

Izuku smiled as she said this, then returned the hug. "Thanks mom, I won't let you or Saitama down, I promise."

"I know you won't dear." She said back. Suddenly, the sound of three knocks on the door reached their ears. Inko walked over to the door and opened it, revealing Saitama.

"Hi, how's it going." He greeted casually.

"Oh, good morning Saitama." Inko happily greeted as well. "How are-" She was interrupted when Izuku ran up in front of her.

"Good morning Saitama! How are you?" The aspiring hero asked excitedly.

Inko laughed mentally. My, my, I only see him excited like this when I buy him All Might merchandise or whenever there's something in the news about the number one. She thought.

"Hey Izuku, ready to get started?" Saitama asked. The boy rapidly bobbed his head up and down. "Cool, but you might wanna get out of those PJs first and maybe put on some shorts." Izuku looked down at his clothes and realized that he wasn't wearing the proper clothing.

"Oh, right." He replied with and awkward look on his face.

"Don't worry sweetie, I bought a track suit for your training. Its waiting for you right in your closet, I just wanted to surprise you." Inko spoke as she pointed to his room.

"Oh, thanks mom!" Izuku rushed into his room, then changed at lightning speed. He came out changed into his track suit. "Okay, now I'm ready!"

"Cool, let's get started then. Streets aren't so busy today, so not a lot of people to bug us. Let's go." Saitama said.

"Remember Izuku, do your best but be sure not to strain yourself okay." Inko told him, as she has been worried that Izuku might push himself too hard and thus hurt himself.

"Don't worry about me mom, I can handle it." He replied as he walked out the door with Saitama

In an abandoned neighborhood

Izuku and Saitama walk into an abandoned area, which Saitama revealed that it is where he lives. This caused Izuku to tilt his head in confusion. This area of the city had been abandoned for a few years due to an increase in the frequency of attacks by villains and mysterious beings throughout the then populated city sector. Even today, authorities were still investigating why these attacks slowly increased in the span of three years. There was a theory that monsters were being attracted by an unidentified power, and so followed their predatory instinct of challenging the strongest presence for dominance, like male animals would challenge one another for the position of alpha male.

"Why do you want to live in a ghost town Saitama?" He asked.

Saitama turned his head up in consideration. "Well, on top of being no door to door salesmen to bother me, the rent is REALLY cheap." He explained.

"Oh, okay. That's reasonable." Izuku said, resisting the urge to roll his eyes at Saitama's shallow and cheap reasons.

"So, let's get started. First, we'll go with 100 push-ups. I'll keep count but take it slow, all right? If you go super-fast, it'll just tire you out quicker." Saitama knew this from experience (although its common sense).

"Okay!" Izuku exclaimed, then got down into the push-ups position with his hands on the ground. He started off with one push-up, then slowly did one after another. As he did this, he could feel his muscles straining more and more with exhaustion. This made sense, as Izuku has never really done anything athletic before, so his body was having a hard time dealing with the pressures of even basic exercises such as this.

"Nice Izuku, you've already got 20. Keep it up, and you'll hit 100 in no time." Saitama complimented. Gotta keep up the good talk. Don't wanna be like those jerk gym coaches who use lady and loser insults. Especially like my stupid high school coach Elri…Ulri…Olri… what's-his-face. Saitama thought as he looked back at his time dealing with his mean, loud-mouthed high school coach. He continued to monitor Izuku's push-ups and saw how exhausted he had become by the time he reached 100.

"Uh, you okay?" Saitama asked concerned.

Izuku looked up with sweat over his face, which looked wrinkled as if he just aged 50 years. "Y-Yes…Absolutely. I-I'm ready… for the… next one." He said the last line in between breaths, leaving Saitama unsure if he really was up for it. The boy was spirited, that was for sure.

"Well, okay. Next up is 100 sit-ups, so let's what else you've got." Izuku put himself in the sit-up position and let out a mighty groan with all his remaining strength to make on sit-up…. then he fell to the ground too tired to continue. Saitama sweat dropped at this. "Uh, need to take five?" He asked.

Izuku weakly lifted his sweat drenched head up and said, "N…Nah, feeling fine. I'm… ready for another one…." Contrary to his statement, he faded into unconsciousness as he said the last part while his head fell back to the ground.

Saitama looked with slight worry. "Uh, I don't think you are. Hello?" He said this after waiting a few seconds for Izuku to make any movement. Oh man, I did push him too far! I'm even worse than my stupid gym coach. He glumly thought. Gently, he picked up Izuku's unconscious form and slowly brought him up to his chest like a father would. All right, how do athletes fix exhaustion? A lightbulb popped over his head. Energy drink, duh. Saitama ran at motorcycle class speed towards a convenience store in the populated part of the city. Upon arriving, and exiting middle aged couple looked at Izuku in Saitama's arms and made looks of admiration. Saitama cringed, not knowing what they were going on about. His answer came when the lady spoke.

"Aww! What a cute boy you have there daddy, he's sleeping like an angel!" She said with affection. The man spoke next, "Yeah, the two of us are working on one right now. Maybe you can give us some tips on raising the next generation some time in the future. Maybe introduce us to his mother, then we can have some married couple get togethers!" He finished with a smile. They casually walked away, leaving Saitama wide-eyed and gaping his mouth in shock.

WH-WHA-WHAT!? Was his only thought. He realized he had to put his student down somewhere before someone else got the wrong idea of his connection with Izuku. Seeing a bench beside the doors, he promptly laid the boy down on his back to finish up his business at the store. Saitama looked around the drinks area and found a 'REAL GOLD' energy drink one sale for 50% off its original price. As soon as he got to the register though, he got his second shock of the day.

"150 Yen!? It's supposed to be 75, it says so on the tag back there." He exclaimed to the surprised cashier, a 25-year old with long blond hair and glasses.

"Oh yeah, that. That label's a week old, so the sale's expired. It's full price now." He calmly explained.

Saitama groaned in frustration. "Look, I have to be a big sensei for my student, so he can be a big super hero when he grows up. So I have to look after his health, that means I really need this drink now. Can't you give me some kind of 'teacher discount' or something?" He asked.

The cashier narrowed his eyes in annoyance. "Look buddy, this is a business, not a charity for schools made up by cheapskates. If you can't afford the drink, then beat it. I have to attend to PAYING customers." He admonished while taking the drink away.

Before Saitama could respond, there was a sudden crash through the door. Turning around, Saitama saw that the perpetrator was a four-legged monster made up of trash. The creature's body consisted of cans of smashed soda can, black bags oozing with a green slime, smashed toys, glass and car batteries among other things. Its body was shaped roughly like a lion, though its front half was noticeably buffer than its back half. Its head was shaped like a horse, but with teethed reminiscent of a barracuda. "I AM REFUGIO! BORN FROM THE LARGEST LANDFILL IN JAPAN, I AM HERE TO SPREAD DISEASE AND POLLUTION, THUS CREATING MORE OF MY KIND! MY FUTURE BRETHEREN AND I SHALL DESTROY THIS CIVILIZATION AND CREATE A NEW ONE FR-!" His rambling was cut off by a large fist obliterating him, scattering all the pieces of garbage that constituted him into pieces.

"Just another lesson for people to recycle more. As if Piccolo Man wasn't enough." Saitama said with his usual bored expression. "And once again, just one stupid punch." Sighing, he turned to leave only to stop when he felt a hand on his right shoulder. He shifted his head to see the cashier with a look of shock on his face and holding the drink in his free hand.

"He-here…. On the house…" He muttered with amazement and fright, giving Saitama the drink. The bald hero made a small smile for his luck.

"Thanks." He replied, a little happy that his hero work, for once, helped his purchases. He walked out side the hole made by the monster, picked Izuku up and headed off.

One hour later in Saitama's neighborhood

While first seeing nothing but fog, a light peeked through the moist air as Izuku rose from unconsciousness and back into the realm of the awake. Slowly, Izuku lifted himself from his back and looked around to see that he was in a park. The area was a decent size, with an area for skateboarding, a couple of swing sets, concrete paths for walking and plenty of trees and bushes around the area for human activity. The only people there were himself and Saitama, with the two of them being on a bench.

"Welcome back, enjoy your nap?" Saitama asked as he turned away from watching at the sky to look at Izuku.

"Huh? What happened?" The boy asked drowsily.

"Long story short, after your push ups you passed out, I went to get you a drink for when you'd wake up, punched a waste bin monster, and got us to this park."

"Oh, okay." He replied, not being surprised by a trash monster due to Saitama mentioning before that he fought a crap monster. "So, I passed out way before finishing training." He realized solemnly as he lowered his head in shame. "I'm so sorry Saitama, I understand if you're disappointed."

"Why would I be disappointed?" Saitama asked surprised.

Izuku looked back up and said, "Because I'm really weak! I mean, I thought that I could handle any training regiment you could give me as long as I kept going, no matter how tired I got. You did that, so why couldn't I? But I was just fooling myself into thinking that. I came to you fully prepared, but all it took was just one set of push-ups, and I came crashing down." He could feel a few drops of tears trickling down his face to the ground.

He mentally prepared for Saitama acknowledging that Izuku is indeed not fit to continue being Saitama's student and getting up to leave afterwards. To his surprise, Saitama said:

"Quit being a crybaby will ya? You're good, it was kind of my fault. I made you train thinking your body could have handled it at the pace that mine did, figuring you'd get used to it overtime. But it went over my head that you're way younger than I was when I started." His neutral expression changed to one of encouragement. "You still did all right though, heck you were even willing to keep going even though you were exhausted. You've definitely got the spirit all right."

Izuku's face went from ashamed to surprise. "You'll still train me?" He asked hopefully.

"If you're thinking I'm gonna give up on you because you missed a few sit-ups, then you're being dumb." He reprimanded. "If I just gave up the first time every damn muscle in my body ached like a ton of dumbbells filled me up and I passed out, I wouldn't be as strong as I am now." And I wouldn't be so bored, which sounds pretty good. Don't think anyone in the world's ever wished to be weak. I really am the odd one out. He thought to himself. "We just have to take things slower, at a pace you can work with. So we're going 25 of each thing now that you 100 percent again, that way you don't end up dying on me, 'Kay?"

"Yes sir!" Izuku responded brightly.

"Drink this whole thing first though, I didn't spend a fortune today just so you could pass out again." Saitama said, handing Izuku the drink. The boy nodded and sucked in the entire bottle in three seconds. Saitama sweat dropped at this display. Wow, was the only word that could come to mind. "Well, let's do this.

Izuku got back into push up stance. All right, one step at a time. He thought.

Izuku's Apartment in the afternoon

Inko stood preparing dinner for Izuku, knowing full well that he would need nourishment after his first round of training with Saitama. Just as she finished, she heard a knocking at the door. Taking off her apron, she approached and opened the door, revealing Saitama with a very exhausted looking Izuku at his side. Seeing her son in such a state made Inko gasp and covering her mouth with her hand in shock. "Sweetie, you look terrible! Are you all right?" She asked with great concern. The boy made a weak smile.

"Better than okay! I actually completed my first set of training!" He said excitedly. "Saitama helped me a lot through it. He's a really great teacher."

Inko's spirit lifted up at his words. "That's wonderful to hear Izuku! But you must be exhausted, so why don't you eat first then go to bed?" She said as she led him to the dinner table. Izuku odded as he took his seat.

Inko then turned to Saitama. "Saitama, thank you again for teaching Izuku. I know it must out of your comfort zone being a teacher, but I appreciate the hard work that you're putting into this."

The bald hero just kept his neutral face on. "Sure, but all I did was tell him to do like a fourth of everything that I did. Not a lot of effort goes into saying 'Hey do 25 push ups right now.'" He commented.

Inko just let out an amused chuckle. "Well Saitama, sometimes the small things have the biggest impact." She began to turn to her son. "Just look at Izuku. He looks like he-" Her words stopped when she realized that Izuku's face had fallen right on his plate of food. She rushed to her son to check up on him, only to see him asleep and snoring. "Oh my, he's more tired than I thought." She immediately carried him away into his room and lay him onto his bed, making a mental note to have him shower tomorrow morning.

As soon as she stepped out of his room and closed the door, Saitama decided to ask a quick question. "Hey since he's off in dreamland again, he won't be eating any of that right?" He pointed to the food on the table, much to Inko's amusement. Though the 'Dreamland again' part gave her something to wonder about.

"No, I don't think so. Dig right in Saitama, and I hope you don't mind if I join you." The two of them sat down and ate as Saitama recounted the day's events. Inko gasped twice when she learned of the result of Izuku doing 100 pushups, and the trash monster's attack. She was a little relieved upon hearing that Saitama quickly disposed of the monster and appreciated that Saitama would be taking it easier on her fragile son. She decided to ask something that had been gnawing at her ever since she heard how Saitama became so strong.

"Saitama, can I ask you something personal?" She asked with frailty as she looked down at her bowl, mixing its contents around with her spoon.

"Sure". He responded with curiosity.

"Will- Will Izuku, how should I put? Do you think that he'll go, well, bald like you did?" She said the last part as if she was lifting a boulder.

All Saitama did was look in complete and utter shock at her, his mind running crazy with thoughts such as his own bald head when he realized that he never considered the possibility that Izuku could lose his hair. Normally if someone made any comment about his shiny head, he would respond spitefully. But this time he was filled with panic at the thought that he could make a much too young boy suffer the same tragic fate as he did. "I-I don't know, God I hope not." He said while covering his mouth in horror. "Maybe not, I mean I'm not pushing him so hard as I pushed myself, so maybe there won't so much pressure on his body." He said hoping that this was true.

Inko thought it over. "Well hopefully you're right but even so. He's my boy and I don't care if he has flowing long hair or is completely bald. I'll be fine with however he looks like as long as he's happy and fluffing his greatest dream." She said with pride, knowing that a mother loves her children no matter how they are.

Saitama's spirit lifted at that. "Good to hear. Oh and by the way, you know of any good wig shops. Just in case."

Inko stared for a long time, mentally debating whether she should agree with him or shrug it off and just let the world see Izuku for who he is in case he went bald despite how much people would make fun of his head. Instantly, she went to her computer and googled 'wig shops near my location.'

Hero Rank:

Tornado, Class S- Rank 4: Her Quirk is that she has the power of Psychokinesis, allowing her to levitate objects, create psychic barriers to defend her body and manipulate the chi or life force of other life forms.

Endeavor, Class S- Rank 3: His Quirk is Hellflame, meaning that he has the power over fire. He can generate his own fire and control it perfectly, while also possessing immunity to fire in general. He is famous for having the highest number of resolved cases in his career as a Pro-Hero.

Author's note:

Don't worry, I'll have the next chapter either tomorrow or the day after. Till next time!