[Volume 1 - Chapter 10]

[E = mc]

There are many a question man has asked himself. Roomba was rarely the answer in all ofthose realities. Fortunately, this was one of those cases where it was the answer.

Usually, golems are shown to be huge humanoid looking metal or dirt, but what was infront of Subaru was quite the opposite. It was a small device meant for cleaning around the house. A roomba he had just ordered.

"It looks like it qualifies as a robot. I checked it just to make sure it doesn't have WiFi. I don't want skynet happening. Now what were we doing..." He returned his eyes to the status screen of the roomba.

"It has one slot, but it can replicate any of my abilities. Isn't it kinda broken? but the amount of materials I had to spend on it was too much. Well, it would have been if i hadn't been converting dirt to metals."

"Which one to choose... Mining, crafting, transmutation, collection? Looks like the last ability is the one I use to put objects in my inventory."

"Guess I should set one for each operation. One will transmute soil to gold to conserve as much space as it can, the second will mine it, and the last one will put it into the inventory. As long as I keep this hidden, and don't metaphorically liquidate the gold, I will probably be able to cheat my way to a billion."

"Though, I might have to open an asteroid mining company because there is no other way for me to get this amount of gold without IRS haunting me for my totally hard earned money."

By the time he returned, the sun had already risen. Subaru walked out of the hole he had dug, and sealed it by using the same block he had mined from there.

"Thankfully, i can remotely share my MP with the roombas. The best thing is, no matter how much they work, they won't stop. My MP regeneration is greater than what they consume."

"Where were you, Subaru?" His dad who was lost in the large hallway saw Subaru walking up through the basement stairs.

"I was just looking around the house, but i kinda got lost." He lied, "Well i am not technically lying. I was lost in my work."

"You too huh?" His dad smiled knowingly.

"Hum!" He nodded using his little head, "but i just remembered where the way to our rooms is"

Seeing that Kenichi was even more of a 'dunderhead' than him, Subaru had decided to call him as such.

"So, how does it feel for your first day in the university when you haven't even officialy completed your school."

"Well, the school never really had something for me to learn... though, there were a few books in my library, but they don't even compare to the library of one of the biggest universities."

Subaru paused to think, "hey dad! I wanna tell you something."

Kenichi felt that it was a little out of normal for Subaru to ask things like these but did not mind it.

"Yes Subaru, you can tell me anything. Is it a secret? What is it? Don't tell me there is a girl you like?"

"After my 18th year birthday, I will completely disappear. In a single moment, I will cease to be in this world."

"Kiddo you are creeping me out." Kenichi tried to play Subaru's word for laugh.

"I am not joking, dad. Here see this." He put a hand in his pocket, and through it, he pulled out a phone. It was because he had temporarily connected his pocket with his inventory. After taking it out, he presented it to his father.

"Where did you get this?" Kenichi asked, checking the phone. The phone seemed to be one of the expensive ones. But what was a shock to him was not the phone, but what it was showing.

"$113480977!" He wanted to shout, but kept his voice controlled.

"Well, this is one of my off shore accounts. In case you ever want to buy something, just order it through this device. That is the least I can do before leaving you."

"Explain!" Unlike his usual attitude, Kenichi was disappointed. Extremely disappointed.

"Well i was going to, so it doesn't really matter." Thought Subaru.

"First i should answer the money part. Don't worry! I earned it legally. Most of this is revenue generated by my apps. Though, in future, this will look like pocket change."

"As for my disappearence, which, I don't think you believe in right now, will happen. I promise that I will find a way to return from tywt world. I want you to meet the friends I will make there-"

"Emilia, Rem, Beatrice, Ram, Reinhard..." Kenichi cut Subaru mid speech, and started naming his friends one by one.

"How did you?"

"Well, you sleep talk a lot. You speak coherent sentences for hours despite sleeping. I just thought that you were talking about an imaginary world."

"So, do you believe me?" He was surprised that his father trusted him so quickly.

"As much as I want to believe that what you said is untrue, I can't help but feel that it is the opposite."

"Thanks dad, I really appreciate it."

"No worries, but do you want me to tell this to your Mom or not?"

"At least not until i am 17. I don't want her to burden herself by worrying about me."

"Should have thought this for your old man too. I worry about you the same too kid." Kenichi was a little hurt by his words.

"Well, I trust you more in keeping our family stable, in case I am not here anymore. In case, one of us disappears, the other can take care of mom. But if something were to happen to mom, we both know that life wouldn't be the same anymore. For neither of us."

"Where are you two? The breakfast is ready. Subaru! Kenichi!" Naoko shouted.

"Looks like mom is shouting from there." Subaru held his dad's hand, and they both walked out the lower floor.

Just after they had their breakfast, Subaru started to prepare for his first day in the university. His parents decided that leaving their son in a new country was a bad idea, so they too prepared themselves.

"Look dad! Leskinen is already at the gate."

"Are you ready?" Leskinen asked, waving his hands in from huge car.

"Just a minute." Subaru texted him back, instead of bursting his lungs just to shout.

As Kenichi finished, they all went and sat inside Leskinen's car.

"It looks brand new." Subaru noticed.

"I just bought it recently. Took me a few years, but I managed to save the funds needed to buy this. So, are you ready for your first day in my university?"

"I am, but is your university too?" Subaru said, cheekily.

After a while, they entered the main building of the university. Subaru was given a tour around the area. By the time he finished, it was already time for classes to begin.

"Subaru, you have classes to attend. Your parents can stay in a waiting room if they want to. Though, it will take you a few hours, so i would advise against it."

Hearing that they would have to wait for too long, his parents decided to go back. Leskinen quickly dialed a number, and told them to go outside as a cab would be waiting for them.

"So,...did you make anything new?" Leskinen asked, his polite attitude all gone, instead a casual tone took its place.

"Now that i think about it, i did make something back in my country. Say, what is the densest cube of iron you have?"

He took out an electronic pad, put his hand on the screen as he waited for the device to recognize its user.

"Hmm... according to our database, the densest sample we have for iron, is only 5% more denser than a simple iron cube. What's that supposed to do anyway?"

"So, what would be the price for a material more than 60% dense?"

"Impossible! The cube would simply undergo plastic deformation before it can ever be compressed to this extent. The only place where it is even remotely possible is the center of a star.

"Well, it is a great thing that I was named after a cluster of stars, because i actually made it."

"You met James right? He would probably want to see it. So when can you bring it to me."

"Well, not right now. It is so dense that it will crack ground because of its weight. I will move it to the "

"Did you measure the mass?"

"About 40 meter cube of iron. Its mass is about three hundred twelve thousand kilogram total. I turned it into a small cube of a few centimetres. It is so dense that i don't think anyone can lift it."

"So, what's your price? Obviously, after I check it."

"Hmm... Just need you to buy me a few things. Don't worry, I will pay for it."

"Sure... but for now, take your classes. Though i don't think that there isn't anything to learn for you here if you are capable of compressing such a large volume to a few cubic centimeter"

"OK then. See you after school. Don't forget to pick me up" He waved towards him, closing the door behind him gently.

"Hey who's that kid?" One of the students pointed towards him.

"Isn't that the kid whom the professor James told us about in that neuroscience conference."

"Looks like they were the kids who were accompanying that scientist. He really scared me the first time we met. I thought i had seen the Petelguese dressed in a lab coat. Albeit a little more sane."

After a few long and gruelling lectures, the classes finally ended, and the time for Leskinen to come has arrived. Sure enough, he was waiting for him outside the building.

"So how was your day?" He asked, while driving.

"You know exactly how it went. Do you even need to ask me? Afterall, you could have tapped the clasroom a little more conspicuously. I mean there was a microphone right under my desk."

"I was wondering what had happened to the microphone." He nodded his head thoughtfully.

"Still do avoid ripping those. The hardware isn't cheap these days."

"So when are you coming to take the cube?" Subaru diverted from the topic.

"Right now. I already called a worker, and told him to bring a forklift with him."

The car stopped as they had reached their destination.

Subaru jumped out of the car and walked into the shed located on the farthest end of the garden.

"Let me show you the way."

Both Leskinen and the worker followed him. As he entered the shed, he told them to wait a little.

"Fortunately, I'd already put the cube in my inventory." He reached out with his hands and put the cube on the ground.

"Come in!" He shouted.

The door opened and both of them were shocked.

"A cube?" The worker asked.

For the worker who did not understand the worth of this cube, it was quite a strange occurrence.

But for Leskinen who understood, it was even stranger.

"So i just have to lift and transport it?" The worker found this job to quite easy than his usual ones.

"Actually try to lift it. Otherwise, Leskinen won't believe that its heavier than it looks."

The clueless worker was a little confused but still he walked to the cube and lifted it.

Or at least he tried.

"Is it bolted to the ground? Am I being recorded?" The man became a little suspicious.

"No. That is why i asked of you to bring a forklift with you. Now come and take it using the machine."

"At least the shed is big enough for a forklift to enter. You really didn't cut corners when you were buying this house, did you?"

Leskinen mindlessly nodded as he looked at the forklift struggling to lift the cube.

After a while, it barely lifted it up the ground. The worker called his firm for a heavy-duty truck. The truck arrived and he put the cube into it.

"It looks comical. Such a large truck and the only thing it is carrying is a small object. I really didn't thought it could be moved." Said Subaru.

"Although, I had expected such outcome, it's still surprise to see it in action,... or rather, the lack there of." Leskinen was still recovering from shock.

Despite majoring in neuroscience. He knew most things about physics. He knew that the existence of such an object had high potential in rocket science.

"Most of all, if you can reduce volume, can you reduce mass too?"

"Not possible." He lied, "even if i could, there would be really really big explosion as a result."

"Ah! How could i forgive the notorious energy mass relation. Still if energy is released when mass is reduced, then by your process which reduces volume, it must have taken a tremendous amount of energy."

"Of course, i needed a massive amounts of joules of energy in order to meld the nuclei together. You need the literal sun to forcefully join the metals, providing both heat and the crushing force.

"The details are well appreciated, but how did YOU make it?"

"Well, regarding the atoms, I just threatened them to join together... or else. And they obliged. I must say, I have a very convincing personality."

"...I have a bad feeling about this."

"Nothing you need to worry about. Anyway, visit me after classes, so you may grab the cube the cube. Maybe have a dinner while at it? I will do so, but I must decline the offer. Can't make James wait for too long, can we? Of course, you even managed to make me believe that."

Sarcasm was the only meaning Leskinen could extract from his words. Afterall he couldn't be telling the truth.

Alas, for Leskinen, as this was one of the few times Subaru wasn't lying.

This was intentional on Subaru's part. He knew when to lie and when to speak truth. He lied when nobody could doubt him and he spoke the truth and only the absurd truth when nobody could trust him.

"Now that I think about it, why did you even made it?"

Subaru really had no answer as he was just testing his abilities. But he knew one thing he was good at.

Lying.

"Well it has a few appication in space related fields. I mean the fuel required to carry this out of orbit will be the same but would require less space. After reaching the destination, just melt the cube to get it to its normal per cubic meter volume."

"Not only that, we can even employ this technique in transporting material all across the world."

"I won't allow it. I don't even need a patent since no one but me can do this."

"Thought this through, eh?" Leskinen wasn't really fond of Subaru keeping secrets.

"Well when you live as old as me, you learn some tricks."

"I never really get why you refer to yourself as an old man?"

"I wonder why?"

AUTHOR'S NOTES:

Hello guys.

Shaheer here.

Not much to say here except that i am thinking ending this volume. this has gone for far too long. I think I should just do a timeskip which shows his entire status before going to the other world.

I already wrote about 38k words and this was only supposed to be a single chapter. it was basically the premise of the story not the story itself.

now tell me whether if you want to see him grow up to be a good boi for his parents or do you want him to be the badass in the next world.