Demon King: Hero, don't run away! - Chapter 388: Catching a Turtle in a Jar

Crossing to One Piece world, he became Roger’s younger brother.

In the vast and boundless continent Cangtu, there were ancient sects governing the Ten Old Domains, unworldly immortal clans beyond the Blue Sky, and primordial demon gods dominating the dark abyss that together created a great number of brilliant stories over the long course of the history.

In this very world, there was a boy, named Lin Xun, who embarked on his journey to the pinnacle of strength alone through cultivation and spiritual tattoo inscribing.

Escaping alone from the Mine Prison where he had been living since he was adopted by Master Lu, Lin Xun knew nothing about his identity but the little information his adopter, Master Lu, had told him. With two ancient spiritual tools Master Lu gave to him before the destruction of the Mine Prison, Lin Xun started his journey to Ziyao Empire, where he is supposed to find out the truth of his lost Spiritual Vessel and the person who slaughtered his family, leaving him orphaned.

Will he be able to unlock the mysteries of the two magic treasures, unveil the secrets of his identity and create a legend of his own?

- Description from Novelupdates

In a dark space secluded from the rest of the known galaxy, a young man wakes up in a struggle for his life.During his coming of age ritual, it was revealed that he possessed the heavy soul body, A talent that could potentially rival even the gods. Joy overtook his entire household as they prepared for the eventual rise of their clan.But on that same day, the Hand of judgement fell upon them extinguishing all traces of life on their planet leaving it as a dead world…As for him? Fate had other plans. Cast into the darkest and most secluded place in the known universe, The sanctuary, he is faced with a decision, become stronger and survive or wallow in misery and Die![You have Awakened ][ Hidden Class Unlocked : SSS Soul King— Supremacy over all Souls and soul kin ][ Innate Skill unlocked: Heavy soul brilliance— In the following 20 seconds host will become effectively Unkillable]-—WSA Entry-—

Pei Jin is a black bellied prince. To outsiders he is a kind gentleman and always calm.