God of Time System: Harem in the Zombie Apocalypse - Chapter 12 Temporal Deceleration

Forcefully brought over from the modern world to an alternate world, Wang Chong felt detached and lived his life aimlessly.

However, when calamity struck and he saw his family and everything he cared for being torn apart, he felt regret.

Thus, he stood up and eventually became the Grand Marshal of the Central Plains, leading an army against those who seek to destroy all he cherished.

Yet, despite all his efforts, it was already too late to reverse destiny.

But before his death, a shooting star, the same one which brought him to this world, appeared before him, and he was given another chance to undo his regrets.

- Description from Novelupdates

Hulk was a pro football player, a guy who loved nothing more than clutching a pigskin and barreling through the defense like a runaway freight train. He lived for the gridiron. But he never, in his wildest dreams, imagined he’d see a pair of nipples bigger than a football. He became a giant baby, reborn with a new name: Orion. Orion was the runt of the giant litter, the weakest of the bunch. But when he turned ten, something crazy happened. He saw a strange panel – that not only displayed his stats but also helped him level up. With the panel’s help, and a whole lot of elbow grease, Orion led his giant tribe to become the most powerful in the Barren Mountains. He went from zero to hero, becoming a mighty Titan King. He was no longer the runt; he was the top dog.

Riding out the apocalypse on a tropical island isn't exactly a vacation. When mana arrives on Earth, Coop finds himself isolated in paradise with only one real option to survive. He needs to claim a civilization shard and level up. Coop maximizes his chances by carefully selecting a class and committing to progression. He’ll need to grind thousands of monsters to compete on the system's leaderboards while upgrading his settlement to represent the factionless.

A mental patient, or a born policeman?

A peerless genius, or a master of crime?

There are cops who are least like cops, and there are criminals who are least like criminals.

Neither good nor evil is absolute.

It is a grey world we live in.

- Description from Novelupdates