MTL - Sick Wife - Chapter 6 , slam

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

He is the heir of Di Hao Group; decisive, cold-blooded yet dotes on his wife a little too much.

Divorced, disowned and down on her luck, Shui Anluo was determined to move on and live a peaceful life… That is, until her ex-husband somehow managed to find out about her baby. Now, he’s insisting that she should move back in with him.

Soon, he realizes that he cannot live without her… But the road to marriage is bumpy, and Shui Anluo isn’t too willing to go through with the heartbreak again.

Can she take back everything that belongs to her? Will she find the courage to jump in and fall in love again?

- Description from Novelupdates

The once rich girl Shen Hanxing lost her mother when she was born. She was then dumped overseas by her own father when she was little to her own devices.