3rd Pov

After Y/n goes back from grocery unaware that there was two people looking at him and never look back at behind him. He goes home and unpacking his grocery and put them in his fridge. Right now, he is sitting at the couch and appear to be in deep thought.

Y/n Pov

'Omicron, can you hack into the internet to find out about Yoo Mina transfers in the company?' I thought

"Yes, it is possible to do so" Omicron replied

"Alright, do it" I answered with thought again

" Yes. Searching files...Succeed......Showing user the information"

Suddenly, there is an interface that shows Yoo Mina's profiles about her work and I realize this is only her first company before her second transfer and dismiss the interface but I didn't meddle into it and think about something else.

'Omicron, am I capable of curing the whatever that makes Yoo Mina sister sick?'

"Depends, the corruption disease is yet to be studied at closer and I do not have any data about it but your body has us which capable of destroying the disease."

"Damn it" you cursed because you had the chance to do something but at the same time, you don't want to get caught and I don't know how to fight. Wait, fight.

'Omicron, can you see my schedule whether I have work tomorrow'

"Yes. Searching files.....Succeed.....Yes, you have work tomorrow, Y/n"

'I see. Omicron, you are capable of changing my body and improving my memory, right?'

"Yes"

'I see, Please search martial arts that exist in this world' I thought to find a way to protect myself.

"Yes. Searching martial arts.......Succeed.......would you like me to show it?"

'Yes'

Suddenly, there are many interfaces containing martial arts but I look at karate and judo because karate is suitable for close combat and endurance fitting with Rex Salazar fighting style and Judo for a counterattack in close combat.

'Omicron does my body suitable for me to learn these two' I point to Karate and Judo dismissing the rest of the interface.

"Yes. Your body has already slim enough to show muscles and to attract pretty ladies"

'Sh-Shut up, you' I thought embarrassed because it is not something I can really deny because they're really beautiful in my standard.

'I see, wait, what time is it I look at the clock on the wall and realized that its already lunch. So, I get up open the fridge and start cooking.

Timeskip by Y/n is surrounded by many women rising Mina's jealousy further.

After lunch, I go outside to go to the library to know where am I because knowledge is power, and also I don't have anything to do besides staying in the house. When I walk to go to the library by using Omicron to make a map as a guide.

Timeskip by Y/n practicing his power in secret.

I arrived at the library and proceed to the receptionist to know where am I will go first and I decided to know where I am first.

"Excuse me, may I know this country's history books," I asked the female working there.

"Oh, Korea's history book. Sure. Just walk straight to the right and turn left and turn right after two shelves."

"Thank you"

"No problem"

With that, I go as exactly told by the receptionist to stand beside the shelves.

'Welp, time to goes reading and gain knowledge.'

Timeskip by Mina looking at Y/n face with embarrassed face while he was asleep.

After I go to the library, I've gained knowledge about this world science, some history, and its resources but the time is already late in the evening. So, I return back home eat dinner and go to sleep.

The Next Day

Y/n Pov

I open my eye and look at the clock which show 6:30 am making me close my eye for a while and starts waking up." Huh, reminds me of school days , dad wake me up at the morning" I spoke to myself reminiscing the past making me smile.

'Hey.Omicron. '

"Yes, Y/n?"

'Can I train in Nanite World?'

"Yes, it is possible to do so"

'I see, thanks'

"No problem"

With that, I go to shower, dress up and make breakfast while watching TV which shows the damage of the Corruption Disaster which seems to be a thing in this world. Then, I eat breakfast which contains roasted bread and milk in the morning because I like a simple breakfast.

Timeskip by Y/n is watching TV but the female keeps flocking to him losing his focus.

I arrived at my workplace and enter it and see Manager Poh is just going outside of the staff room and greeting me.

"Ah, Y/n, early worker indeed, and please help me carry things"

"Sure, just let me get changed first"

"Alright"

After I changed my clothes, I help him carry things he needed from inventory.

"Y/n, can you check the stock. Here's the list, I'll take care of the cashier a bit while you check it."

"No Problem" I replied with my poker face.

Then I do the task I was entrusted and do it while checking the stock quantity making me feel unaware that a group I know is outside. After finishing my work, I goes outside to inform Poh that I finished the task but what I saw is speechless. The entire group of ALT Squad is at the cashier my heart jumps a bit but I still retain my poker face.

"Manager Poh, I've finished checking the inventory and stock," I said

"Oh, Thanks a bunch, Y/n" he replied making an entire squad facing me and Seo Yoon recognized my faces along with certain snipers making me nervous because I'm not used to many people looking at me unless its presentation.

"Let me finish this first. Then, I'll go check" he said while scanning the price tags but Seo Yoon wants to speak but was cut off by the Manager finishing the scan and putting the goods inside plastic bags and I go to the toilet to do my business.

"H-"" Here miss, your grocery," He said cutting her off and Kim Sobin is paying the grocery considering her attitude and familiarity with the outside world.

"Thank you for your business," Poh said.

"Um, Mr?" Seo Yoon asked

"That person just now, who is he?"

"Ah, his name is Y/n, my colleague. Why?"

"Nothing. Just want to know"Seo Yoon replied finishing the conversation.

3rd Pov

The ALT Squad is outside the store showing Seo Yoon is deep in thought noticed by her teammate, Xiao Lin.

"Hey, Seo Yoon." She asked

"Yes?"

"Why do you want to know about him?"

"You mean?"

"I noticed you look at him at the mall and just now you seem really looking at him at that time." She said attracting her other two teammate members, Kim Sobin, and Eunjin.

"Yeah, you're looking at him just now" Eunjin said

"I-its rare for someone to catch your eye," Kim said

"Ah, just I can't read his face and he's the one who offer the last ingredients and that's how I got out early from the mall" Seo Yoon replied

"Oh" is her teammate responded

"Well, come on, let's get going, the job not gonna solve itself," Seo Yoon said changing the subject.

With that, they go on their way except Seo Yoon watching the grocery for a bit, and goes her way.

Y/n Pov

'Holy, I didn't expect them to be here I thought

"Y/n, your heart rate increased. Would you like me to make some jokes to calm down?" Omicron asked jokingly which calm me down.

'Shush you, Omicron'

After finishing my business, I goes to the cashier to meet Manager Poh and he called me to take over the cashier. After that, the day just continues as usual because no encounter with Squad or other Counters.

Timeskip by Y/n reading a Physics book

After work, Y/n Pov

'Ah, that's a good day at work'" See you later, Manager" I said catching his attention when he was closing the store." Alright, be careful, Y/n.The thugs act more aggressively at night" he said making me nod.

Then I walk to my way home without encountering anything and take a bath and dinner. Next, I lay on the bed and concentrated on entering the nanites world and found myself on the highest pillar.

"Okay, Omicron. I want to train right now, so can you modify this place?"

"Certainly"

Suddenly, the whole place shifted and now there was flat ground before me but other than that, nothing changed.

"Alright, can you summon some enemies until I got used to changing the machine?"

"Certainly, anything I may know?"

"Judged my speed and how I used my machine and raised the difficulty based on that results"

"Confirmed and have a nice workout"

After I said that, there are multiple EVOs appearing, though I don't know the names they look like rabbits.

"Alright, here I go!!!" I shouted forming Smack Hands to catapult myself to the air. Then, pull my right arm and smash it down on its heads!!!. Then, I grabbed the EVO at my left and throw it to who knows where. Then, I focused on returning Smack Hands into my body and creating Punk Buster but I don't realize the third EVO is running to me and ram to my back launching me forward.

"Damn, I lack focus !!!! thank goodness this is training or else I will be severely injured." I said while trying to stabilize myself in the air before noticing the EVO I throw earlier. Getting an idea, I increase the pressure inside Punk Buster and release it at poor EVO making it disappear and I feel myself grinning because of adrenaline.

"Come!!! I take all of you on!!!"

Soon, the EVOs multiplied and I tried to create two machines at the same time with a combination of Punk Buster and Smack Hands. Then, I jumped by using Punk Buster raised my Smack Hands, and slam some EVOs in the way of my landing. Soon, I charged at them. Punching, Kicking, It doesn't matter because I want to experience fighting considering I have never fought before. After that, less than half of the group is decimated. By my estimation, there are 100 of them. I then retreat my machines and tell nanites to build a sword, my favorite machine in Generator Rex, Big Freaking Sword. Then, I charged at the EVOs slashing the first, second, third and I tried to have some experience sensing danger but I cannot because I don't have enough combat experience. So, I just used my sight and decimated who come close to me destroying the EVOs and what was left was only five EVOs. Then, I retreated BFS bring out Slam Cannon, and put it on my shoulder. The cannon back specifically its maw began extending itself and takes a chunk of ground behind me. Then, I tried to shoot the cannon by reflex but I realized I'm a terrible shooter in real life and the shoot misses.

But I did not falter and reloaded my ammo again and takes a deep breath.

*Inhales*

*exhales*

"Okay, this is a cannon, therefore, it used trigonometry as a basis"

With that, I used basic trigonometry that I know of and shoot the EVO and it hit!!!

"Yes!!! Now four more left"

And I massacre them all and kill the last one by performing a slam using cannon, of course. Dropping myself on the back and Omicron to rate my fighting.

"The fight can certainly go better but this is your first fighting experience. So, I can only give you B+"

"That'll do as long as I know how to defend myself and maybe you can point out my weakness"

With that, Omicron point out my weakness and I take mental notes and asked how much time passes.

"It is just only for 5 hours in the real world. Would you like to go back?"

"Yes, definitely"

Soon, I found myself on my bed and my body hasn't been sweating but I feel like my mind is rushing.

"What happened to my head, Omicron?"

"Your mind is experiencing the fight but It is nothing serious, just merely information that your body receives"

With that, I began to fall asleep awaiting the next day and I have reminded the facts I have an alternating interval schedule. Meaning, I will get an off day.

Timeskip

The sun rises and shows a moderately normal apartment and zooms in to one particular room and there appears to be a person on bed and he is waking up.

"Hnngh, what time is it" spoke a man who turns to his right and looks at the clock hanging on the wall which shows the time at 6:30 A.M." Is this early, better get up, I have a lot to experiment with my new powers," he said revealing this is Y/n L/n who appears to be getting up and sits on his bed.

Y/n Pov

'Sometimes, I kinda wish that I wake up from a dream but now this is my new reality' he thought because he is reborn or transmigrated by whoever they are, he was feeling overwhelmed when he had to adapt to this world rule.

'Just be grateful that I have powers to protect me at the very least he thought while getting dressed after showering and drying his body.

'Alright, Omicron. Give me the information about Judo and Karate.' I thought to Omicron

"Certainly. Information on Martial Arts Karate and Judo. Do you wish to receive this information?"

'Yes' Then suddenly, a rush of information rush my head making me dizzy but I held on for who knows how long. Then, it stopped and I make a punch exactly how I received the information and kick high like the exact style of Karate.

'Omicron, you can modify my body right without stunting my growth?' I thought to Omicron because if he is able to do functions like the one Nano machine's comic, it will be useful.

"Yes. It is possible to do so"

'Well then, please change it so I can use all the style I receive, and please includes the anesthesia as well'

"Certainly, Please lie down on the bed to be comfortable"

With that, I go to bed and closed my eyes and darkness enveloped me but not before I felt my muscles changes and I asked Omicron how many hours it need.

"The process will only take half an hour to complete until then have a nice sleep."

After that, I fell asleep.

After 30 minutes.

"Hnnngh, I feel different," I said and sits up on the bed and realized there's a six-pack on my body.

"The process has been completed, Y/n. How do you feel?"

"I feel good, in fact, I have never been feeling so healthy. Thanks, Omicron" I said

"Just doing my job."

"Now that I think about it, how many nanites are currently in my body?" I asked Omicron because, in Nano machine's comic, the main character has six billion but I didn't know much because the comic is still ongoing.

"Right now, You have 1 trillion and it can be replicated due to Omega-1 nanites"

'Omega-1 nanites also known as control nanites' A large, silver nanite that was injected into Rex by Dr. Rylander. This nanite controls the active nanites within Rex's body and is responsible for the creation of Rex's new machines.

It was created during the Nanite Project by the project scientists as a successor to the failed Alpha nanite. It was designed to work as a human-to-machine interface. The exact power of Omicron Nanites is unknown because the comics got dropped and both nanites are responsible of protecting me because I have both of them in my body. So, I dropped the matter because I won't have to worry if my nanites got run out.

"Alright, time to test my other nanites power. How do I use other nanites power, Omicron?"

"Just simply imagined what kind of power you want to use and the nanites will take of the rest."

With that, I imagined a fireball floating on my palm and voila!! It happened. Thus, I use the other nanites to experiments with.

Timeskip by Y/n laughing maniacally worrying the other around him.

So far, I can use elemental, space, and Gravity. Then, I gained another idea to camouflage my abilities and rely on my builds as a last result."Hey, Omicron. Can you make a sword for me using Meta-Nanites strong enough for it to be considered unbreakable by this world standards" I said

"Certainly. What kind of sword would you like?"

Soon, my mind drifted to a picture I saw in Internet from my past life.

"This" I thought about that picture.

A/N: Just pick one of the swords

"This is doable. Is this the sword you want?"

'Yes'

Soon, in front of me, nanites slowly came out of my body and starts taking shapes of swords and it turns into my sword.

"Whoa," I said in awe."Thanks, Omicron"

"You're Welcome"

"Alright then, let's test it," I said holding my sword while in a sheath of course. I don't want to accidentally cut anything. With that, I grabbed the handle swung the sword downwards calmly and slash to the upper right letting the wind sound of being cut but I realized I don't have sufficient knowledge of swordsmanship.

"Omicron, transfer sword skills and modified my body and muscles to use swords without losing my martial arts skills."

"Understood"

With that, I lie in bed again and asked how many hours it take.

"It will take 30 minutes because this is basic skills"

'Alright' After that, I fall asleep and wake up and capable of using swords proficiently but I still need the training to improve my combat capability. Then, I realized I forgot to look at the time and it shows 12:00 pm meaning I've been in this far more than I realized and with that, I put the sword away and starts cooking.

Timeskip by Y/n cooking Miso soup.

'After lunch, I need to improve my skills like Physics, Hacking, and Strategy to improve my skills on versatility and to solve my problem.' I thought while eating Miso Soup, fried chicken, stir-fried vegetables,s, and rice.

3rd Pov

Soon, Y/n finishes his lunch finish washing dishes, and get ready to go out to the library because he thinks Omicron may have limitless knowledge but he needs to do something to fill time.

Afterward, the night came and he eat supper and sleep awaiting the next day.