I Have A Super USB Drive - Chapter 51: Wholly Acquired

He returned with a vigorous presence, equipped with a Heaven-reaching Innate Ability. He could heal, tell fortunes, refine medicines, set formations, and refine talismans… “There’s nothing in this world that I can’t do!” — Shen Feng.

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

The labyrinth that swallowed humanity. Four choices were given to them.

Easy Mode, where anyone can survive. Normal Mode, where only those who fight survive. Hard Mode, where only 1% can survive. And the Solo Mode, where only one person survived.

The strongest returnee of humanity, Kang Taesan, was an Easy Mode player.

He heard countless times,

“What if you had chosen the Hard Mode, or even the Normal Mode?”

Regretting his cowardly choice while dying amidst destruction, he gets another chance to choose.

“This time, I won’t make the wrong choice.”

The strongest Easy Mode player has returned.

Being given a chance and reincarnated is nice and all, yet why do I have to become that male friend who just watches the protagonist flirting with his harem?---World: Kaguya-sama: Love Is War - Hyouka ----