Local Netizen Elf's Life In Another World - Case 84: Genetic question.

(Warning: Harem, if you don’t like it, please refrain! Boldly breaking taboo ethical norms, not letting go of any beautiful women encountered!) A young nobleman with a delicate constitution, pure and kind, has always been protected by everyone. However, after two months of military camp life, he began to change for the worse. With unbeatable power in his hands, he became lawless, targeting countless beautiful women in the city. In his eyes, every beautiful woman is like a delicate flower. He wants to gather these tender flowers around him, then extend his strong wings to shield them from any harm...

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

All of a sudden, various watches appeared out of nowhere in different parts of the world. These locations were quickly controlled by various organizations, and then the marketing of the watches was strictly controlled.Why was this? Because these watches gave access to a unique world: Eternity!Eternity functioned more or less like an open-world game with a single-player mode, except that Eternity was a game where you could actually die!By joining Eternity, everyone awakened a unique talent.This talent helped unlock the first classes, which allowed you to strengthen your physique both in Eternity and in the real world!Not to mention the various skills and talents available...And above all, there was the legend that it was possible to become immortal thanks to Eternity!It was with the aim of changing his destiny that Maxime trained his whole life in swordplay, and for many years saved his meagre salary to obtain one of these famous watches!Watch his rise in the real world thanks to Eternity!