Ch 95 – Killing Rintarou

"Sweet baby Jesus, Macrohard finally cave in," I said while plopping down to the bed to lie down on my back as I just finished selling the code and getting 10% of the shares for Craftmine, that's what you call being smart ladies and gents, don't sell a product, you must also get passive income from it.

"I really should invest more in physical cash now that I have to jump from one universe to another from now on, but I'll still be here for probably more than a month so let's just get an apartment first," I muttered while grabbing all of my stuff and getting out of the hotel after giving back the key so I can finally find a house for myself.

But first of all, I need to get myself some new clothes and forged some papers so I can buy an apartment.

Within a few hours, I managed to forge some fake documents of myself I can just say I look young to fool people.

And after a quick search around Kuoh, I managed to find an apartment I can rent and the apartment complex is huge so fewer people can find me here due to the other people staying here acting as my camouflage.

(A few minutes later)

"Thank you, sir, you can get your key over here and the apartment is now yours," said the lady who gave me a key and I just nodded and went towards the elevator to get to the floor my apartment was located in.

With a quick look at the other apartments beside me, I nodded and entered my very own and saw a blank canvas I can work with the apartment was relatively large but I'll move out of here in a month to buy myself a house because some of the machines I will need are a bit big in size.

Though I can make a shrinking device so maybe I can make a portable house later, that would be neat.

Now that funds aren't much of a problem for me, I activated my watch and appeared just outside Kuoh Academy and saw that the students are already going home from school, time really does fly by when you're busy.

"Hmm, oh there he is," I muttered as I saw Rintarou in the distance walking alone home from school, typical, I didn't have a friend back in my universe so I guess he is the same.

But from just a glance alone, I can see he was the me from before I became smart so another mystery to solve later on once I'm relatively safe and have no other problems to take care of.

Besides that, everything seems to be relatively the same with some minor changes here and there like a tree being out of place.

So what now?

I guess I can just continue my development of tech but how do I even learn magic in the first place?

Sigh, the only way for me right now is through Rias and Souna but murdering them might lead to unknown consequences so maybe in other cities, there are ways I can learn magic?

Oh, wait!

Europe!

There's gotta be magic there!

Like come on, Europe and Magic go hand in hand together.

I'll deal with that later, for now, I'm still vulnerable to death and I don't have any countermeasures against it so perhaps it's time to get cancer.

I quickly reappeared back home and went to grab random stuff so I can make an invincibility cloak and steal some uranium from America, X-ray would have been fine but it's too slow for my taste and would have taken me days to achieve.

"Nuclear power plants in America," I searched on the internet while grabbing bottles of healing potions I made by the side and putting them inside my pocket.

"Okay, New York it is," I muttered and put on the cloak of black on top of my body and pressed a button to make myself invisible, even with infrared lights.

"Operation Uranium, commence," I muttered and appeared on top of a skyscraper filled with glass windows on its walls.

"Over there," I muttered and saw the fumes of gas rising towards the sky in the distance and teleported towards it and appeared just in front of the entrance.

Now, where is the uranium stored?

Oh, there it is, I thought the moment I saw two persons dragging along a box towards a certain room and knew the uranium was inside it with the radiation detector in my hand.

After following the two people inside the room, I saw tubes upon tubes of uranium being stored in these little boxes and hit the jackpot!

Now I only need to wait for them to go away and steal a couple of boxes for me, though it would be annoying to get the uranium out of the steel tubes.

(A Few Minutes Later)

"It's a success!" I shouted once I appeared inside my room holding a single box holding a giant piece of uranium, I found it while wandering inside the nuclear power plant and manage to find this little bad boy stored inside another room and stole it without hesitation.

"Now I only need to make a cancer potion, and then code it so that my cancer cells won't kill me and instead grant me absurd regeneration, though I can make the cancer cells die repeatedly instead and now make my regeneration get more powerful by the second, but that's too dangerous without a cloning device for me to use," I muttered and hurriedly went to ground up a chunk of the uranium and threw in liquids after liquids into a plastic bottle and by the time the sun was rising in the sky, I was holding a bottle filled with strange glowing green liquid.

"Well, here we go," I muttered and drink the liquid without hesitation and instantly drop down to the ground with my consciousness going to the shadow realm.

….

"Wha!" I shouted the moment I opened my eyes as I suddenly felt better than ever before!

"Oh shit, it took the whole day to transform my whole body into cancer cells? Sigh, I'm really reckless sometimes, I thought it would only take a couple of minutes but nope, it took 24 hours," I groaned while walking towards the kitchen to test out my healing factor and stab a knife to my thigh and see it heal instantly.

"A huge success, now I can survive as long as my brain is there," I muttered and cracked my bones that were stiff due to the awkward position it was in for a whole day.

"Sigh, now that I'm technically immortal, I think it's high time I explore the abandoned schoolhouse and try to find magic books there," I muttered and put on my invisibility cloak and appeared in front of the abandoned schoolhouse within an instant.

"It's time to finally explore the topic of magic," I muttered and teleported inside the room, and just like last time, I instead found a still fresh tea lying on the table in the living room.

Oh, there we go, books!

Let's just hope it's magic books and not anything else.

Aha! It is a magic book!

But the moment I opened it, I saw that it was a different language with strange writing so they do have a different language, perhaps a devil's tongue allows it to speak any language and communicate with any human.

With this unfortunate finding, I stood up and loitered around trying to find anything I can use like hair so I can extract their DNA and maybe make myself a devil.

"Oh? What's this?" I muttered as I finally noticed a certain piece of paper under the teacup and the moment I flipped it over, it was a picture of…

"Issei?" I muttered with raised eyebrows.

I'm pretty sure issei is a human right now so why do they have a picture of Issei here?

Does somebody here have a crush on Issei?

Well there's only one way to find out, I guess it's high time to replace the Rintarou of this universe, it seems like this school is the way for me to find out the secret of Souna and the Occult Research Club, though it would be unfortunate to leave behind my apartment but I'm just gonna make a portable lab later on so meh, it's worth it for me.

With a blink, I appeared back in my apartment and got all of the items I need into a black bag, and appeared back inside my house in the universe and into my room to drop down the items on top of my bed and assassinate the Rintarou of this universe once he gets back home.

(A Few Hours Later)

"I'm home!" shouted a voice downstairs as I instantly turned off my laptop and a black gauntlet appeared on my right hand.

And as I heard Rintarou's footsteps nearing the door, the doorknob then started to twist, and prepared to punch his head and replace him from now on.

And the moment I saw Rintarou's head, I threw a punch and his head exploded into bits and pieces leaving the hallway dripping with blood.

I then took out a spray filled with pink liquid inside it and shot the pink liquid all around the hallway and watched the blood disappear away and now everything is clean.

"Welp, sorry me but you just got unlucky to die by your own hands," I said while shrugging my shoulders and teleported that body to an active volcano to burn.

"Now that's done, I'm now officially the Rintarou of this universe," I muttered and took off my invisibility cloak and felt the sweet release of air finally hitting my body.

(A Few Minutes Later)

"Rintarou, we're home!" shouted my parents downstairs as I got out of my room with a big wide smile.

"Welcome back!" I responded back with a joyful smile and took the three into a hug.

"Aw, did something good happen today?" asked my father as they took off their shoes.

"Nothing much, but I just miss you guys," I said as they chuckled and hugged me back.

After that, I went back upstairs to analyze the pictures I've taken of the books inside the abandoned schoolhouse and I still haven't decoded the language yet, it should take me a few weeks to finally know what each letter means but it should be achievable.

Though I can just make a memory stealer and go to another universe and just mindfuck Rias but that's too risky right now because I had been lucky for the first time I've done a jump from one universe to another.

So I'm playing it safe here right now with how much I lack knowledge of the supernatural.

Sigh, I don't even know how to start learning magic right now, if only there is a school for human mages, but the chances of finding one without any connections are abysmal.

Though there should be a reality out there where I am a mage and I can just go from there but it's still pretty hard to go to my desired reality with the formula and how complicated it is.

So with me rubbing my forehead, I just opened my laptop and waste time before school starts again tomorrow.

"Craftmine is officially changing from Java to C++ and now there will only be one version of Craftmine, it is called Craftmine. Well, that's a big change I've done to the world, they're still probably trying to find who the fuck hacked into their systems but the guy they're trying to find out is me," I muttered while sipping on some drinks.

"Nii-chan! Do you want to play Craftmine with me?" said Ren as he entered my room holding his own laptop.

"Sure, but let me just do something to your laptop real quick," I said while a burp came out of my mouth and he gave me his laptop without hesitation.

With a quick tinkering around, I made his laptop's processing power rise through the roof without changing anything from the inside and instead just made a fake OS for him that is the same as mine.

"What did you do?" asked Ren with curious eyes the moment I gave him back his laptop.

"I just tweaked some things, well let's go play Craftmine already!" I shouted and opened my Craftmine and soon, we played Craftmine for the rest of the night.

AN: This is 2105 words, you're welcome.

Oh the amount of bullshit I have to write is astronomical, like a potion that would grant controlled cancer?

Or a potion that would make someone part Dung Beetle and could turn it on and off like a rip off power ranger?

Just wait in the later chapters when we really start to explore the wonders of his big brain.

The Sword of Damocles hangs above each and everyone one of you with its ever present threat of despair, so send me some power stones with your power of friendship and save the thousands perhaps even millions to come who will read this masterpiece immortalized in the tunnels of time.

(April 29, 2022 – 156th day of writing)