Naruto System in One Piece - Chapter 48

He is the world's number one 'wanted criminal', causing havoc globally, and specifically targeting the black and white underworld.He is talented in everything and is a man of mystery.With the aim of finding various famous flowers, he roams the city known for its indulgence, carving out an exciting life in this extravagant city!

Imagine being murdered on your way home to your girlfriend, only to have your soul stolen and handed over to the Demon King as an offering for goods. Could it get any worse?This is the story of a man cursed with a skeleton body, now working alongside the Demon King to unravel the mystery of his new existence. As he navigates this dark new world, he discovers the twelve universes that govern humanity, encountering both allies and enemies along the way.Struggling to regain his humanity, he must master his newfound powers and survive the dangerous politics of the 12 universes. Can he uncover the truth behind his transformation and reclaim his soul, or will he fall to the darkness threatening to consume him?

Crossing the Douluo Continent, or an auxiliary spirit master?

Su Xun decided to exercise his body first.

Thirteen years later, Su Xun is out!

Star Dou Great Forest…

“Golden Eagle, the white feathered peregrine falcon killed your wife, I’m here to help you get revenge, you fight, I’ll support you!”

An hour later, the uninjured Su Xun took away the dying white-feathered peregrine falcon.

Battlefield…

“I saw that Xiongtai’s brows were fighting against the air of black and yellow. It must be extraordinary. I don’t know if you can make friends?”

Su Xun stretched out his hands of friendship.

Thirty seconds later, looking at the opponent whose body was filled with black energy, Su Xun turned aside:

“Referee, you should speak up, or he will be poisoned to death!”

- Description from novelbuddy

Suddenly, the unmarried twenty-year-old Ye Zhizhou had many more relatives, yet it was too late for him to clearly understand the circumstances as he nearly died in a car accident. After that, he somehow managed to survive and was even forcibly bound to a Salvation System.