ShuviLily

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.
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Warning: Story with R18 element

Mercenary Harem in Murim Novel

'Let's take Old Jin and figure things out by scanning his body.'

In the end, the order took priority. Anya was a soldier, a mercenary, and a killer. She had killed many people before and she would continue to kill. This time, however, it wasn't her job. She had to find the location of the altar, and she would be able to get the location from Old Jin who somehow got brainwashed here.

"Old Man is truly troublesome!" She complained and took a step forward.

As soon as her foot landed, an explosion of ice formed under her. The cold temperature froze the ground instantly and the earth became frozen, causing a chain reaction of freezing in a large radius.

Everything within the area froze solid. The ice covered the trees, buildings, and people around them, including Old Jin and the other men's legs who were in the process of digging a hole.

Chapter 200 – Supreme Evil’s Bones