A skilled thief gets a system in an Alternate Wizarding World. The system seems useless in the beginning since he hasn't unlocked any features. But...
[The very first feature of the System has been unlocked.]
[Congratulations. You've unlocked the class feature. Due to your existing skills and experience, you have gained the Special Class \

(Naruto World)
In the 56th year of the Konoha calendar, Akatsuki added two more members, one of whom was named Uchiha Itachi and the other named Uehara Naraku.
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(One Piece World)
That year, the Baroque Work recruited new employees, and the president, Warlord Crocodile, held a smoking pipe and looked at some resumes with satisfaction. One of the resumes was a young man smiling very kindly. He called Uehara Naraku.
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(Overlord World)
The Great Tomb of Nazarick.
The Ainz Ooal Gown guild members gather here, and they will carry out the last guild activity before the game closing service. Momonga looked at his friend and said in a deep voice, \

In the ancient centuries of the yonder past, the heavens and the earth was rent, and in Long Ji Continent a tribe of dragons ruled supreme. But now, the dragons are extinct, and with a mysterious catastrophe descending, the fate of the world is at stake!
A teenager named Long Chen takes on the legacy of his father, chases after the mystery behind the sudden extinction of the dragons. In a lucky coincidence, he becomes the first ancient dragon warrior in an eon, with the responsibility to uphold the dragon tribe's honor and the command of all dragons under heaven.
With the most passionate battles, heart-moving tender scenes, brutal slaughters, and filled with the majesty of dragons. On the advent of the catastrophe, millions upon millions of dragons descend upon the world again, bringing the world to the brink of an era of war.
For he of the ancient dragon tribe, is willing to paint the sky with blood, if only for the bonds of brotherhood; with a wave of the hand to reverse the flow of the galaxy, for a goddess worthy of praise; will pull the gods down from their celestial pedestal, sunder the heavens, for the good of all living things under the sky!

Living things really are ignorant a the greed to obtain the key to knowledge and the fundamentals of energy overpowers them.
Little do they know that knowledge is full of lies and energy is the root of destruction.
Us, mages, have mastered travelling through space and time. We are invincible, we can turn worlds into dust and you, mere ants, will be wiped out with no trace.
-Mage Adam An A.I.(Artificial Intelligence) gets reincarnated into a world where he becomes a mage.

Upon opening his eyes, Muyang realized that he found himself in Dragon Ballas world filled with dangerous people like Vegeta, Frieza, Cell, Majin Buu.
However, decades later.
aCaptain Ginyu, letas run away, we are no match for him!a
Jeice looked back in panic.
aLord Frieza, the demon has caught up again.a
aHe even destroyed our home planet.a
aThis bastard!a
Frieza looked at Muyang with bloodshot eyes filled with anger, but sadly, thereas nothing he can do, even heas no match for Muyang.
aCome on, show me what you can do.a
Related Series
The Strongest Legend of Dragon Ball (Shared Universe)
Dragon Ball Legend of Ayaka (Prequel)

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.aPlease save us, Savior Dono!aKuroki nodded, deciding to save the demon king due to an unexpected turn of event.

Robin Burton is a young man who grow with everything anyone can hope for, immense talent for cultivation, sharp mind, a wealthy family that will stop at nothing to protect and nurture him
He had everything... except the willingness to take them.
aWhy would I take the same route as my ancestors ?
why should I become stronger? to beat this and compete with that..?
At the end of this road what will happen? get a harem then die and be forgotten after a few years?
NO! That is not what I got my talent for... THAT IS NOT WHAT I WAS BORN FOR!
what I want is more... much more.
I refuse... I will not take anyone's route, I will make my own...
I do not want to be a legendary figure, I will be THE Legend..
I.. Robin.. will do it my way, or die trying.a
This is the story of a Researcher, a Warlord and... a God Emperor.

Chen Fei looked at the bewildering number of people in front of him who desperately practiced boxing to become a master, sighing.
aCompete? I donat think so. My motto is never to stand when you can sit.a
So the panel answered his call.
aExtreme Mountain Fist Technique simplification in progressa| simplification successfula| Extreme Mountain Breathing Techniquea
aExtreme Mountain Breathing Method simplification in progressa| simplification successfula| Breathinga
Chen Fei took a deep breath.
aExtreme Mountain Breathing Method experience +1.a
aa|So I can cultivate by breathing alone?a

The trembling Hyuga Kuroto finally got the treasure that he dreamed of!
How exactly will the world of Naruto be perceived with his glowing Royal Blue Tenseigan

(Naruto World)
In the 56th year of the Konoha calendar, Akatsuki added two more members, one of whom was named Uchiha Itachi and the other named Uehara Naraku.
__
(One Piece World)
That year, the Baroque Work recruited new employees, and the president, Warlord Crocodile, held a smoking pipe and looked at some resumes with satisfaction. One of the resumes was a young man smiling very kindly. He called Uehara Naraku.
__
(Overlord World)
The Great Tomb of Nazarick.
The Ainz Ooal Gown guild members gather here, and they will carry out the last guild activity before the game closing service. Momonga looked at his friend and said in a deep voice, aTakimi-san, please use your ring to summon Uehara Naraku! Let's bring down the strongest world boss in this game! After this game is closed, Uehara Naraku's Favor is useless, right...a
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(Bleach World)
On the battlefield of Shinigami and Hollow.
A young Shinigami named Uehara Naraku was full of frustration,
aSorry, Captain Aizen, I'm still too cowardly...a
aThis is not cowardice.a
Aizen Sosuke smiled and shook his head. He patted the young Shinigami on the shoulder and praised, aThis is kindness, and kindness is a noble character worthy of praise.a
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(Marvel World)
Stark Building.
Tony Stark walked into the building and pointed his finger at an employee who likes to drink juice, aYou are fired, go get your liquidated damages...a
aMr. Stark, Mr. Uehara Naraku has just passed the interview, and he hasn't signed a formal contract...a
aIsn't that just right? We don't even have to pay liquidated damages.a
__
He is an Actor.
He is a Conspirator.
He is a God.
Uehara Naraku transmigrated into the Anime World with a single purpose of becoming the biggest boss in the world. Watch as he travels different worlds and turns them upside down using his acting skill and conspiracy behind everyone's back.

The warrior Hamel went on an adventure with his companions to defeat the Demon Kings, but after dying just before the final battle with the Demon Kingsa|.
aWaaah.a
aWhat the fuck!a
He was reincarnated as the descendant of his fellow warrior, Vermouth.
Hamel a no, Eugene Lionheart was reborn with the blood of the Great Vermouth.
aMy previous body held enough talent to be mistaken for a genius, but this onea| thereas just no comparison.a
With a body that had higher specs right from the start, he showed explosive growth that far surpassed what he had achieved in his previous life.
Along with the unknown reasons for his reincarnation came the uneasy reality of having to coexist with demons.
He was faced with a world that made him question everything he had believed in.
Gifted with this extraordinary body since birth, as Eugene, he begins walking down the unfinished path from his previous life.

Han Muye, who had exceptional comprehension skills, was reborn into a cultivation world. He joined a clan which specialized in swordsmanship. He then became the keeper who looked after the swords in the Swords Pavilion.
There were more than 100,000 swords stored in the pavilion. The keeper was tasked to clean all of them once a month.
When Han Muge cleaned the Qinghe sword, he acquired a hint of Sword Qi.
When he cleaned the Ziyan sword, he comprehended the swordsmanship, the Burning Plain, left behind by the original owner of the sword. He also acquired the Sword Qi of Burning Flame.
When he cleaned the Shanyue sword, he comprehended the teachings left behind by Master Boulder and learned the Mountain Sword Technique.
a|
Han Muye built up his Sword Qi bit by bit during the past 60 years working as a keeper in the pavilion.
Throughout the 60 years, a disciple came to seek a sword in the pavilion, and he received guidance from Han Muye.
The Sacred Maiden from the demonic clan attempted to steal a sword from the pavilion, but in the end, she left dejected and empty-handed.
A swordsman came to challenge Han Muye, and he left with a broken sword.
a|
60 years later, the Celestial World invaded the mortal world.
The disciple had become an exceptional Sword Deity. He wielded his sword and protected a part of the world.
The Sacred Maiden had become the demonic clan leader. She sent a letter to the Swords Pavilion and led her clan to fight against the gods.
The swordsman had achieved enlightenment in his swordsmanship. His Sword Qi rifled up to the sky.
a|
The gods from the Celestial World loomed over the sky above.
Han Muye slowly stood up. 100,000 swords followed him as he emerged from the pavilion. His Sword Qi could be sensed from 30,000 miles away, and his Sword Will pierced through the realms.
He declared, aToday, I, Han Muye, will traverse the sky. I want to see who among the gods dares to invade this mortal world.a