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The Super Speed System in The Flash

Jack Mayhem gets reincarnated into the flash tv series with a cheat system. Watch Jack as he lives an exciting and fun life in this dangerous world while also getting stronger. P.s: English is my second language so bear with me please, I'm doing this just for fun, i don't own anything except my OC.

Greed091 · TV
Not enough ratings
3 Chs

Changes & Meeting The Flash

Central City, nine months later.

Under Jack's building, in the basement, which by the way has a whole new look, the space now is split in two, the first half became a laboratory with some simple robots running around doing chores or conducting experiments, while the second half stayed as a training ground with some training and testing equipment around and in the center lay a big treadmill.

On the treadmill, Jack wearing his armor, was running under immense pressure, but he's still invisible in the normal eyes, he didn't make any sonic booms or anything even though he's speed exceeded sound, and that's because he developed a new use of his protective aura to nullify it, and the treadmill was especially made by him to handle his speed, if it were any other treadmill it will already be broken.

After almost 20 hours of running, Jack stopped his training, his face was normal as ever, he didn't even break a sweat, he took a deep breath: "sigh, that's it for today, now i can run at 50% of my normal speed at this current gravity." after that he cancelled the gravity on his suite before turning it again into a watch, then he made his way to the elevator.

On the elevator, Jack let out another bored sigh: "even though i can train longer with my unlimited stamina, i can't, it's boring as hell."

Suddenly, Lucy appeared in his watch: "Sir, you don't have to be bored anymore, the deadline you set before the training has already arrived, nine months has passed."

Jack's face instantly changed from a depressed one to an excited one after hearing this: "oh yes! i almost forgot. Lucy take me to my apartment floor, i need to take a nice shower and a relaxing sleep, i haven't slept for days now."

Lucy: "Yes sir!" then the elevator started going up.

After reaching the apartment, Jack first took a shower, before using his speed to undress and dress in his pajamas under a second, then he lay down on his big soft bed, letting out a content sigh of relief: "now this is better. hmm, let's check our progress before going to sleep."

'Status'.

"Name: Jack Mayhem

Age: 26

Lvl: 3 (10000/5000)

Speed: mach 100

Abilities: Immortal, Protective aura, Speed thinking, Sonic punch, Phasing, Speed mirage, Air manipulation, Singularity, Fighting master, Perfect armament haki, Ultimate instinct, Perfect Moonwalk.

Inventory: Food, Water, clothes, Superman's glasses."

Jack's status window changed a lot in these past few months. First "speed thinking", "sonic punch", "phasing", "speed mirage", and "air manipulation", he learned them naturally after he became fast enough, they don't really need much explanation as they are pretty much like in the flash tv series except maybe the "sonic punch", the difference is he can throw a sonic punch without having to run to gain momentum, Jack can instantly speed up his punch to supersonic speeds, and the faster the punch the greater the power.

And second, the other abilities he gained from leveling up, starting with "singularity", this ability allows him to be the only Jack Mayhem in all the timelines and multiverse and not be affected by the time paradox so that he will always be in the main timeline, it also grants him immunity to cause and effect, also immunity to mind abilities.

As for the ability "fighting master", it pretty much does what it says, Jack became a fighting master.

And the "perfect armament haki", this ability comes from the one piece world, it gave him perfect mastery over armament haki, Jack was very happy after he got it, because there are some abilities that grant the user to become elemental which is pretty annoying, and the ability also gave Jack a great boost in physical strength.

Then there is "ultimate instinct", which comes from the dragon ball world, this ability gave him the power to make instant decisions in battle just by instinct, and after it is peered with the "fighting master" it becomes a very perverted ability in battle.

And finally "perfect moonwalk", this ability is a lot like the moonwalk in one piece except that it is a bit more versatile, it gives Jack the ability to walk on anything, be it air, space or whatever, he will never loose his footing.

After the abilities there is the inventory, Jack put a lot of food, water and clothes in it in case of emergencies, besides time is completely still in the inventory so it never goes bad, and he also put in it superman's glasses, which has the simple function of masking the user's identity, but they look a little ugly.

"A lot changed in the past nine months huh? I've become a lot more perverted hehe." after checking his status window, Jack let out a chuckle before closing it, then he closed his eyes and drifted to sleep with a soft smile thinking: 'i can't wait for tomorrow!'.

The next day.

Jack woke up naturally a little over 12 pm, he stretched a little satisfied with his sleep: "haah.., this is nice, i haven't slept like this in a long time." after done stretching, he took a shower and brushed his teeth before instantly changing his clothes.

"Hmm, I'm craving for some big billy burgers." touching his stomach he put on his armor and ordered: "Lucy, point to the nearest big billy burger fast food restaurant. oh and don't forget to set my armor to always put a gravity that can suppress my speed by about 50% when i wear it."

Lucy: "yes sir!"

After that an arrow appeared in Jack's sight pointing to a direction, then he felt a pressure on his body weakening his speed, he did this so that he could always train when he goes out, besides he doesn't need all that speed and even if he does he can always lift it.

After grabbing some cash, Jack activated his speed and ran down the building from the balcony, he ran 90 degrees stepping on the surface of the building like it's normal, after he reached the ground he followed the arrow's direction, speeding through the streets and roads like there's no one else, everything was in slow motion for him, be it cars, people, animals, everything other than him was super slow.

"Hehehe, this so much better than in the basement." Jack chuckled a bit before passing a man who was going to kiss his girlfriend, then he replaced the girl with a dog who was beside them and has his tongue out, after that he ran away with a mischievous smile: "hehe, enjoy the kiss."

After Jack reached his destination the arrow disappeared, then he entered and took 10 ready made burgers from some customers then he left them with three times the price and swooshed away.

Reaching his home, Jack deactivated his speed and started eating the dozen burgers with relish, even though he doesn't really need to eat anymore, but he was a foodie in his past life and this one, the food gives him a sense of enjoyment.

On the other hand, in a park outside his building, a man was having a kiss with his dog in the stunned eyes of his girlfriend: "umm, i like you, but why is your tongue so big?" confused he opened his eyes and found his dog giving him a "bro, you gay?" look.

As for the restaurant on the other side, the customers who found their food disappear were just about to start complaining, but then they saw the money and shut up instantly.

After Jack ate all the burgers and fries, he used his speed to instantly clean the table and poured himself a glass of wine before sitting on a reclining chair at the balcony, taking a sip he enjoyed the view of the city: "haah, this is life."

About 5 bottles of expensive wine later, Jack got up from his seat and stretched a bit before putting on the armor again, then he ordered: "Lucy, show me the Flash's location now."

Lucy: "right on it sir" after about 3 minutes a mini map with red dot in it appeared.

"Hmm, so he's in the stagg industry warehouse, he already reached this stage huh. okay let's go have some fun and make extra experience." closing the mini map, Jack instantly disappeared in his place, running through the city following the arrow that appeared, after reaching his destination he phased through the wall and found the flash on the ground getting beaten up by five identical guys.

After instantly rescuing the Flash from under those guys, he said with his back to him: "leave this to me" then he beat the clones under a second leaving only the main body that he grabbed from his throat, after that he said to the stunned Flash: "I'm going to take this guy for a ride, but don't worry I'll not kill him, I'll let him go. i just hope you can beat him then and not get your ass kicked again hehe, see you later." then he disappeared taking with him multiplex.

"W-wait..." and that's all the Flash could say before he saw Jack leaving super fast, even for him, he could only see after images: 'wow that's fast!, and who is he?' then he heard police sirens: 'ugh, i gotta get out of here.' after getting up painfully, he left the scene quickly leaving only a yellow lightning in his way.

On the other side, outside the city, in an open clearing, Jack came here and threw the man he was holding on the ground.

Multiplex looked at Jack a little fearfully especially seeing his armor, all black and blue ghostly blue eyes, he asked: "what do you want from me?"

Jack smiling cheerfully: "nothing, i brought you here just to beat you up"

"W-what? are you joking?"

"No, get ready, and don't worry I'll not use my super speed, so fight as hard as you can, to make it more fun."

Multiplex was stunned for a while, before his face turned ugly, he felt angry and humiliated: "don't underestimate me you bastard. ugh." then he started splitting clones, 1 to 2, 2 to 4, until he had a hundred clones surrendering Jack.

"Haha, yes, this is more like it." Jack hardened his whole body with black purple haki which was a little hard to see from his already black suite, and smiled excitedly: "come on, let's dance!"

Multiplex was surprised a little by the scene before he angrily shouted: "ATTACK!" after that all the clones sprinted towards Jack.

Jack looked at this with a smirk before clenching his fist and knocking down the first clone that reached him, cracking it's skull a little, then he entered the flock of clones, swinging his fists and with every blow a clone will drop, and using his "ultimate instinct" and "fighting master" no clone could land a hit on him.

Multiplex looked at this astonishing scene with shocked eyes: "shi*, what kind of monster is this!? it's only been 10 seconds and he already beat 50% of them, i need to create more clones!" then he started exerting himself forcefully to create more clones, his face red and covered in sweat, he created about a hundred more.

"Haha, it's useless, no matter how much you create, ants are still ants." Laughing disdainfully, Jack continued hammering the clones down quickly, and after about 2 minutes he cleared the field leaving only the original standing, then he made his way to him with a satisfied smile: "now that i had my fun, let's end this."

Multiplex looked terrified: "w-wait, we can talk, you don't have to kill me, please!"

"uh? oh, don't worry, i don't have any reason to kill you, I'll just beat you up a bit, besides, i heard you can recover pretty fast." then Jack lifted his haki and started beating the poor guy until his face became unrecognizable, he didn't stop until he heard the system.

System: "congratulations host, you defeated Multiplex, and gained 500 xp."

'Finally, i almost thought i should kill him.' after checking his increased experience, he looked down at the messed up Multiplex, then he said: "sorry i went a little heavy hehe, here I'll leave you some food to accelerate your healing, and some cash if you need it. now you can go about your plans normally, i won't interfere."

After that, Jack activated his speed and left the place heading home, leaving a blue and purple faced guy, looking at sky, doubting life.