MTL - Self-cultivation of Male Supporting Role - Chapter 254 no i am human

This is the story of a crazy lich who possesses an internal game system and brings catastrophe to the entire world.

“THE NEW GATE”, an online game that trapped its players and turned into a death game, was now releasing the thousands of players that had been dragged into it, thanks to the efforts of Shin, one of the most powerful players. But after having defeated the last boss and freed everyone, he was swallowed up by a strange light and found himself inside the game world 500 years in the future and unable to leave.

When an S-class elite assassin-raised captain of a special ops suicide squad comes home from a high-stakes Africa mission, he finds himself offered something that could potentially set him up for life- a curious assignment that he could use to finally exit his days of war and slaughter.

Then placed into a high-school setting, Lin Yi is tasked by the chairman of a top-tier multi-billion company with bodyguard duty for non-other than his own daughter, a certain little Miss of said high-school.

His enemies, once ranging from drug lords, mafia bosses, political figures, and national leaders, are soon replaced with spoiled kids who happen to have rich papas and mamas, and Lin Yi finds his intense expertise and high-threat skillset misused, and very underwhelmed…

But he does get a harem cast as diverse as his old enemies, so Lin Yi decides that, for the sake of messing around with girls as an invincible entity in a down-leveled environment, leaving his bloody and death-filled war days behind is something he’d definitely want to strive for.

- Description from Novelupdates

In 2036, mankind landed on the fluorescent Mars for the first time.

In 2052, the first World Budo Tournament will be held, which is also the world’s highest fighting event, and the world is enthusiastic about it.

Xu Jingming, the world’s top player “Gun Demon”, chose to retire when he was twenty-six years old, with an injury left by the competition…

A turbulent new era has begun!

- Description from novelbuddy