MTL - Science and Technology Library - Chapter 1119 :urgent

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

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

“Ding! Found a key plot character: Izumi Sagiri, please be sure to seed this character within a month.”

“Ding! Detected a young female dragon Kangna of a powerful species, and asked the host to sow the species within one day!”

“Three years is the highest death penalty.” Ye Feng looked hesitant as he looked at the young girl dragon who flung himself into his arms and acted like a spoiled child.

ps: Comprehensive manga: 100,000 cold jokes → Mr. Erromanga → Gensokyo → Kobayashi’s Dragon Maid → Dark Bullet → Gensokyo, the world is to be determined → _ → (Feilu solemnly reminds: This story is purely It is fictitious, if there is any similarity, it is purely coincidental, please do not imitate it.)…

- Description from novelbuddy