Arifureta Shokugyou de Sekai Saikyou (WN) - Chapter 396

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

[Ding! You have stopped the Cromothean Invasion! You have unlocked the Adamantine Battle Armor (Level 3)][Ding! You have solved the Cosmic Formula! The cosmic entities have grown wary of your existence.]Years ago, way before I was even born, humanity was reminded that we weren't alone in the universe, and our world was invaded by a race of alien conquerors that called themselves the Ravemites.It was ghastly. And humanity was soon on the brink of extinction until, we were saved by an Intergalactic Organization that called themselves Starcore Nebula.Years later, in the middle of this chaotic relationship between mankind and alien, I, Eric Kaiser — a regular 18 year old kid who had always looked up to these heroes of earth, aspired to be just like them even without awakening any talent, lost my parents in the apocalypse.Since then, I lost any aspirations I had, any admiration I harbored towards these intergalactic agents. Till one day, I came across a strange system that changed my life forever, then I awakened a talent too.That Talent's Name was D.E.L.T.A.And because of it, I was linked to the greatest technological system in the universe, create state of the art weaponry out of thin air? Easy. Hack into the universe's most elite security system? Piece of cake. Being wanted by cosmic beauties across the galaxy? Child's play.But I didn't go unnoticed, soon enough rival galactic organizations and even alien warlords from all over the universe wanted me gone at any cost, so if they wanted to wage a war against me, bring it on.I have no desire to become a intergalactic hero, but with this system, I am justice.So the battle to save earth from these so-called conquerors? it wasn't just the planet's fight anymore, it was mine. They made sure of that the day they let my parents died.

Traveling to an overhead urban world where martial arts and immortal arts coexist, the only thing Lin Shen can rely on is the avatar Golden Finger.

Cultivate in avatar, the main body becomes stronger.

Clone [Pure Yang Body]: Yang attribute skills training speed +300%, Blazing Sun Palm, Melting Soldiers Hand, Qianyang Sword Art… Any Yang attribute skills can be easily mastered, and a thousand miles a day!

Clone [Natural Dao Body]: Practice speed +500%, all martial arts skills can be understood at a glance, mastered, and crushed all geniuses!

Clone [Sword God Wuwo]: The power of swordsmanship skills +200%, the speed of swordsmanship skills training +200%, let you be tyrannical, I will kill you with one sword!

 …

“You never know how many avatars are working hard behind the person chatting with you in front of you!”

“The avatar did it, what does it have to do with my body?”

“What I’m most afraid of is that others will bully the few with the more, anyway, not as many as me!”

- Description from novelbuddy

This is my first original novel, it may be bad, but this is all in my mind and imagination. (Warning!! There will be an Incest genre) Thank you o⁠(⁠(⁠*⁠^⁠▽⁠^⁠*⁠)⁠)⁠o(oh yeah I forgot, this cover is not mine, I just edited it, if you feel you own it and don't like me using it, please tell me)