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

At the start, there were around 300 to 500 people from each side. While the numbers didn't look impressive, all of them were martial artists that could destroy a house, a superhuman with superpower.

And now, the number was reduced by more than half, indicating that the battle was getting heated up.

Blood, guts, and flesh were flying, and the sound of metal hitting metal echoed in the air.

Some people were trying to save their comrades, but many others just attacked each other without mercy. It was like a feeding frenzy, and Leo could feel his blood boiling as he saw the battle.

"It seems war is the same no matter the world." Jessica muttered with a frown. She covered her mouth with her hand, her eyes tearing up as she saw the scene on the screen.

A disgusted look appeared on Leo's face. He didn't want to see something like this, but he needed to stay focused. He couldn't afford to get emotional or distracted.

Chapter 183 – Escalating Situation