A Ninja In The Jianghu World(Change Link)

A ninja in the modern world was too rare. And the ninja called Ryū from a certain underground organization seemed to be the last ninja in the modern world. After all, the other members of the organization prefer to use modern weapons, unlike Ryū who still used a kunai, shuriken, throwing needles, and sword to perform his tasks.
Even so, he was still famous since his success rate in performing his tasks was above 90%.
He was a young man equipped with a subtle presence, danger awareness, agility, and strength.
Too bad, he is still human after all.
He died due to an unexpected accident after he completed the mission.
However, his story did not end there. He was reborn as a baby in a world that was foreign to him. He was reborn in the Jianghu world. In that world, he is called Ji Long.
There, Ji Long learns that the world he lives in has people who are able to manipulate the spiritual energy within their bodies. Strong people are everywhere. However, he wasn't gifted with talent. No, to be more precise, the meridians all over his body were blocked which made him count as a failure. As a result, he was neglected by others except for his parents and little sister.
Later, due to a fortunate encounter, he chanced upon the legacy of the extinct ninja clan.
Let's follow the steps of Ji Long to the peak of the Jianghu world as a ninja.