I Level Up by Killing Gods - Chapter 44: Blood Debts.

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

When a person dies, they either die light as a feather (aka unimportant) or heavy as Mt. Tai (aka very important).

Cricket System: Rise of Raj> Pavan Raj was born to play cricket. But when his dreams were crushed by strict parents, jealous rivals, and heartbreak, he gave up everything… until fate gave him another chance.One silent prayer, one wish to return—and he wakes up in his younger self’s body.But this time, something's different.[System Activated]With a mysterious Cricket System that levels up his batting, bowling, fielding, and strategy, Pavan Raj sets out to rewrite his life.No more hesitation. No more missed chances.From gully cricket to selectors' eyes, from self-doubt to sixers—this is his second innings. And this time…He’s playing to win.

What will happen if your ordinary life becomes not so ordinary? What will happen if your old existence becomes anew? What will happen if the world that you know is changing?

Our heroine, Anne, is a 40 year old librarian, that got entangled in mythical magic, inside a mysterious fairytale book. When the disaster happened, she got thrown into another world, the kingdom of Valorian, where magic and lore are coming alive. A world where she becomes younger again, but with a wisdom and knowledge of a forty-year-old woman.