One Piece: From the Rocks Era to King of the World - Chapter 7 - Exercise

I was a failed experiment

Carlos Valois thought dying once was enough—until he woke up as a 10-year-old in the world of “The Dark Era,” a game he'd mastered in his previous life.Born as the last heir of a fallen noble house, Carlos discovers he's destined for a tragic fate: in six years, he'll be manipulated into joining the dark forces and killed by his own childhood friend. But this time, he has the ultimate cheat code—memories of the future.While other kids play with toys, Carlos hunts for divine legacies. Using his game knowledge, he performs an ancient ritual and steals a Demigod Mark from the thousand-year Sacred Oak—a power that should have remained hidden for decades.At 15, Carlos awakens as a Death Herald with broken stats that shouldn't be possible. Most Death Heralds are fragile summoners hiding behind weak skeletons. But Carlos combines his necromancy with stolen divine abilities, creating a hybrid build that turns him into an unstoppable force......[Skeleton Warrior has successfully evolved into Purple Thornblade Skeleton Guard!][Purple Thornblade Skeleton Guard has activated Bond: Glory of the Purple Thornblades!][Twelve Purple Thornblade Guards have formed an Undead Armored Knight Legion!].....His skeleton warriors aren't cannon fodder—they're elite undead legions enhanced beyond normal limits through secret evolution paths that took thousands of players years to discover.Every “coincidental” encounter is actually Carlos farming legendary opportunities. While his sister thinks he's just a lucky genius, Carlos systematically raids every hidden treasure, secret technique, and forgotten legacy he remembers from the game. Ancient bloodlines, divine artifacts, mystical cultivation methods—if it exists, he's taking it.With his infinitely evolving undead legion, Carlos set out on a path to rewrite destiny and become the supreme Death Herald legend.

Tang Feng had been just an ordinary milk tea shop employee before one day, the lady boss called him to her room, and he learned what “hidden rules” really meant...

In the cyberpunk era, corporate alliances dominated the world, and both the humans and witches were ens*aved by advanced technology, becoming nothing more than fuel for society. Unwilling to become a company dog, Xu Yang decided to run away, while saving the cute and powerful witches from the giant enterprises, together they embarked on a road of innovation!

- Description from Novelupdates