I'm Leveling Up Too Quickly - Chapter 251 - : Sect Master Zhu (1)

Xiaya reincarnated in the Dragon Ball Universe as a Saiyan 12 years before the destruction of Planet Vegeta.

Watch him as he creates the strongest legend of Dragon Ball World from the beginning.

- Description from Novelupdates

After putting a suggestion to add a mercenary in a bad Murim novel he read, Leo would finish a mission with his NPCs before sleeping. Or so he planned. For some reason, he was transported into the said novel as the extra mercenary added by the author. His loyal NPCs, a yandere secretary, a happy-go-lucky assassin, a sexy puppeteer, and two weapon maniac guys start to become sentient. He lead his mercenary band ’Hallowed Insects’ toward an an unprecedented future in a Murim most turbulent era while enjoying his time. Fortunately, they still have their futuristic equipment with them. Tang Clan have a Poison Dagger, they have a Photon Sword. Shaolin Sect has a Qi Blast, they have a Railgun. And of course... “How much are you willing to pay to employ us? By the way, Demon Sect pay us 50,000 Golds to join their side in the upcoming war.” ... he always sided with the highest bidder.

A young man plagued by recurring nightmares finds himself visiting a blind fortune teller, who sends him to a world of martial arts that looks a lot like the wuxia stories he used to read.

In the sky of this world, a tome shines every now and then, revealing the hierarchy of mighty beings that seek power amid troubled times. Determined to unravel the mysteries of his involuntary journey and the secrets of the world he has ended up in, he endeavors to ascend the tome’s rankings, all while looking for a path back home.

Official Chinese blurb

Wandering the jianghu with a blade and wine, where beauties’ grace is filling one’s mind.

A youth, saber on his back and wine gourd at the waist, strides forth, yet the jianghu of his heart seems only more elusive;

With each flipped page of the Tome of Troubled Times, decades of nights soaked in rain pass over the jianghu.

As he suddenly turns to look back, he finds that the mortal world has shattered in his wake.

This is actually the story of a teenager who, after the devastating and spartan-like training of his crazy cool/Gong teammate, turned into a super amazing point guard that could blow up the skies even though he may seem low-key on the surface.

Also, Nie Chuan is Reese’s first love.

Nie Chuan: I’ve decided to promote you to becoming my best friend!

Reese: If I can be your best friend, it just means that you have no friends.

Nie Chuan: Hey! How could you say that! Do you know what it means to be my best friend?!

Reese: I’m sleeping.

Nie Chuan: It means that when I get married, my bride may not necessarily be her, but my groomsman must be…

Reese: The groom must be me.

Nie Chuan: What– you want to snatch my bride away?! You’re too inhumane!

Reese: Sleep.

- Description from Novelupdates