God of Tricksters - Chapter 2110 Win...

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

[Warning: Mature content, lemons, comedy, MILFs, NTR, and a villainous protagonist!]_____[Ding! Congratulations, Villain! Your survival chance is 0.01% unless you NTR every hidden boss in this world. Start now or perish!].....James Tanner’s life could be summed up in one word: boring. After barely a week of being a rookie cop, he met his end courtesy of a speeding red sports car.But death wasn’t the end. It was just the beginning.When James woke up, he found himself in Aurendral, inhabiting the body of a rich young master who had spent years blind due to a mysterious condition.Fortunately, the blindness vanished when James merged with the body, leaving him with perfect vision—and one massive headache.[Ding! Issuing First Death Mission: NTR the hidden boss in this region within 90 days… or perish.]What choice did he have? Forced into the role of a scheming villain, James Tanner was about to shatter conventions, steal hearts, and become the strongest and most fearsome seducer this world had ever known.Because if he was going to be a villain, he might as well be the best.[Note: MC takes other guys' women, they don't take his.]

Instead of causing chaos with my knowledge of the original work, I assisted the protagonist.

I successfully completed the story and now planned to retire and live peacefully.

However, it seems the protagonist still needs my help.

An academy professor? That’s nothing much.

But why is the state of the academy so strange?”

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