Defying the Rogue Alpha - Chapter 9: Game

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 first time she married him, he blew her head off with a gun.The second time she married him, she became a woman with the intelligence of a 5-year-old.To survive, she decisively slapped down a divorce agreement to humiliate him severely, and then... was pinned against the corner of the wall.Shi Lingyan hooked her leg and squinted his eyes, “You think I can't recognize you just because you changed your face?”Thus, she was pressed into marrying him for the third time _(:3」∠)_Mr. Shi said, “To love your wife is to pamper her as if she's intellectually disabled.”Shi Mei: “I knock your mom!”[Rebirth] Pretend Idiot VS Genuine Schemer

Our protagonist, Xu Yi, is born with a silver spoon in his mouth, able to live a happy and worriless life. However, he wasn’t able to enjoy this life for long, as the revenge of his family’s enemies quickly caught up to him.The enemies are much more powerful than Xu Yi; therefore, he has no choice but to be obedient. However, forbearance is not always a good policy. The enemies take advantage of his passiveness and bully him even more. These little sparks of anger have finally become an uncontrollable fury for Xu Yi, compelling him to seek revenge.