One Piece: The Template System - Chapter 35: Drum Island - 2

In a world ruled by ten royal families, Saruto was born into the Lewin family (the Dark family). He grew up carrying a promise he made to himself with his mother's last breath: to become the pride of the Lewin family (the Dark family). He is compelled to acquire power to help him achieve his goal. In his quest for power, he begins to uncover the origin of the Dark Power that suddenly appeared in his world without warning. He realizes that his family's history is deeper than he thought. How will he discover his family's history, and will he be able to fulfill his promise to his mother to become the pride of the Lewin family (the Dark family)?

In a world where everything is led by wizards, Ron, who transmigrates into this world and is struggling to fuse with the soul of the original body owner, has been taken to the Black Mist Jungle, where the guide sneers during the declaration:“If the assessment is not passed within a year, I will personally dissect your brain.”Just as he is in despair, a Panel awakens in his mind:[Ron Ralph][Age: 15][Current Profession: None][Current Profession Slots: 0/∞]

This is the tale of an earthling, who transmigrated as a dying third-rate god but somehow rose through the ranks, gaining followers and eventually causing the Fourth Great Apocalypse.

Lin Zheyu transmigrates into an ancient world and becomes a storyteller to make a living. After being robbed several times, he decides to learn martial arts for self-protection.However, during one of his conversations with his master, Lin learns that this world is home not only to martial artists but also to demons.