I Become Invincible By Signing In - Chapter 215 - I Want to Teach Martial Arts (2)   

Waking up in the body of a 6-year-old boy a few years before Cintra is destroyed, Madara receives a system that gives him the ability to gain the powers of Uchiha Madara.[The peak of Uchiha Madara's system is before he becomes the ten-tails jinchuuriki.]The system's percentage does not stop Madara's power, but rather the system's release. After all, I don't want to see a character who goes around killing everyone from the beginning of the story.

What is the most painful thing in life? What is the happiest thing in life?

The most painful thing was that after untold hardships, for that small glory at the end but was returned back to the starting point in just one night.

The happiest thing was that after returning back to the starting point, without doing anything, was able to become overpowered overnight.

Zhou Jian in just one day, experienced his life most painful and happiest thing.

The most painful thing was his painstakingly raised professional Thief game account in the online world was “lost” by the system.

The happiest thing was the reason behind his game account loss. The Thief from his game account had appeared in the real world. And become a controllable God of Thieves.

In short, this is a relaxing YY (tl: Chinese slang for light perversion) story, full of plots where playing the pig to eat the tiger. The protagonist is a very righteous young man. Occasionally, he will be wicked but also because he was forced by the author….

- Description from Novelupdates

Rowen transmigrates into the world of One Piece, gaining the Strongest Trait System—capable of plundering the Traits of others!Spotting the golden—shimmering Trait on Koby, Rowen scoffs—You think a clown like you deserves this? Gimme that!From then on—Rowen plunders even more powerful Traits.Marine Headquarters: “He is a monster who devours and takes everything—the most dangerous ability user in history!Engaging him is forbidden without explicit authorization from the highest levels of the World Government!The World's Most Dangerous Man! 'Sky Sovereign' Rowen!DEAD OR ALIVE! Bounty: 3,988,900,000 Beri!”