Undertale: The Ultimate Sans System

Before we begin with the story even if you surrely knows how this work i shall do it:

* * is the when the Narrator(Me) explain the situation, in 3rd person figth

" " is when the caracters are speaking

' ' is when the person in question is thinking or when i....well you will see it later

[ ] is when the system talk

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*In a white void, a skeleton seems to be asleep, when suddlenly he open his non-existent eyes.

"Huh where am i ?No most importanly why i am a skeleton???"

Said Mark as he look aroud him to find a endless white void but what attracts his gaze was his hand or what was used to be, now a skeleton hand. He began to look around his body to find that he was a skeleton! Multiple question was crossing his mind but one was really bothering him.

"Why"

As he said this he felt a 'Sense' of deja vu as he experience a Flashback.

*Flashback*

Mark was running in the street pushing other people of his way, he receive multiple set of eyes from the people on the street.Mark was a 14 years old teenager He well...*we don't care about his look he is a skeleton now*anyway he was going back to his home for some reason, when a crowd began to form right on his path he continue to run but he was enable to pass the horde, he realize that the mobs did not acknowledge him and continued to look at the sky.

" What are you looking at?"

The person pay no attention to him and continued to look at the blue sky.

Mark intrigued, look at the blue sky but something was wrong.He spotted white cracks web's like in the sky that were growing larger and larger by the seconds.

The croad began to panic as the people screams in fear.they were running like headless chickens bumping into each other.In brief it was a mess, The only left on the street were Mark who's leg was frozen in fear .Mark tries to move his leg but to no available his body was not responding.

"I-i can't move my legs is that the end?" Say's Mark in lamentations as the cracks were covering the entire sky.

From the crack appear a black void. from the void, a white car emerge with strange paint covering it.

"Wait is that a SUPRA???" Said Mark as the SUPRA was coming closer and closer at a speed that will kill him.Fear grip's his heart as he fell helpless to do anything to prevent his death.

The automobile stops 1 meter of his face,a sigh of relief leaves his mouth.

"(sight) i thought i will die here." Spoke Mack as he gasp for air.

When he heard a voice coming from the Supra.

"Awwhhh how can i forget to turn on the Eurobeat, i'm stupid." The mysterious guy said as he fell stupid of forgetting something so important.

"Who are you?Wait!You're face i-i-it's ME!!" As Mark said these words, a smile appared into the mysterious man face.

"Well hello there."

"General Ken-*cough*cough* I mean why are you me? And why are you trying to kill me." Said Marck as he can't believe the situation he is in.

"Well i am You from a another universe and because it's my job to do so."

"To kill them, get them isekai and you get isekai points for future upgrade to how to kill them i guess?"

"Something like that, you're surprisingly intelligent for a Mark." Remark the man with a smile.

"I don't know if i should take that as a compliment or not." He said as he look at him with a deadpanning eyes.

"A compliment of course hehe." Responded the other mark with a cheeky smile.

"Sooo. . . . you're just a wannabe wish version of Truck-kun?" Mark ask in confusion.

"Hmph! don't mention that truck i'm better that it, you see with my cool entrance and my Supra." Says the supra mark in a tone fill with cockiness and pride.

Mark just stay silent but he soon noticed something with the supra. . . .it was painted with anime girls all over it!

'So he's a weeb huh.' Remark Mark.

*A/N: Get it? Mark Re*Mark* haha funny.*

" Anyways....it exist an entire multiverse of Me and your isekai-ng them correct" Mark said Trying to change the subject.

"Well yes, but actually no." Said the Mark.

"???" Mark was confused.

"Not all the Mark get isekai other get transported or transmigrated, for exemple, a Mark got transported to the Scp universe." Said the Anime lover Mark.

"OOF i'm sorry for Me?But it is interesting thing but i hope not to be as it it fill with Dimensional beings, gods and things or events that can end the world. At Least i will get a more peaceful word like uhhh, i don't have one in mind right now but there plenty of more peaceful world like mine too right?" Mark say's in hopefulness.

"....." He remain silent.

"Like mine too right???" He ask with a hushed tone.

"Anyway(turning the Eurobeat on) goodbye other Me."

"Wait! I have other questions like, what world i am going to?"

"You will see it soon..."

"NOOOOOO-CRASH" Scream Mark as he got crushed by the car.

What was left of him was a crater full of blood, the car was nowhere to be seen.*

*Flashback ends*

After the Flashback ends, Mark reorganize his thoughts.He made a conclusion of his situation.

"So i died by a SUPRA by Me from a another AU then get transported as a skeleton in a white void. . . . . . . . well this is unfortunate."

[System has found host]

[System proceeding to fusion with host soul]

1%

7%

33%

69%

87%

100%

*As the system was bonding with his soul,the soul began to change.*

"Bruh?"

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Hello there, i am the The Bruhtastic and i will inform you on something's right now

1)I'm so lazy,I'm bone

2)I will make a entire chapter concentrating on the sans i will include into the story

3)The chapters will be at least 750 words long

4)Shifter Sans is a incredible undertale story i can see great potential in it, i recommend you to read it(but i'm sure you certainly read the story before i write this :)

5) Solo leveling: The Gate Guardian is a great story too i like the idea of it and if you want to see scp on other world ant their impact in it(like me) i recommend this story.

6) My story is inspired by a lot of undertale story Shifter for well inspiring me to write( it gave DETERMINATION ;) and My Forgotten Fantasy and other for my system with my sauce in it :)

7)The real reason i don't have time to write is because i'm to busy eating cookies and playing with the dudes.

8) there wasn't a lot of puns and Bruhs but this just getting started in the next chapters there will be more:)

9) well that it for the moment i will surely redo something like this on futures chapters.

AH yes i almost forgot i will ask a question on each of my chapter or answering them like Power levels, Events(in the future),favorite sanses,their themes and songs.

I'm felling sleepy it's 2am the moment i write so if you see my english worse and worse that why anyway have a good night/day Bruh! :)