Arifureta Shokugyou de Sekai Saikyou (WN) - Volume 1 Chapter 3

This is a world where humans, demons and mysterious beasts coexist. Humans cultivate mysterious qi. Demons cultivate corporeal bodies. Mysterious beasts cultivate soul perception. A legend says that in the middle of an endless rainforest, there are extremely powerful existences; they are called demon kings. Some demon kings have a tyrannical corporeal body, some are experts in illusions. Some demon kings are proficient in magic, some can even move mountains. Some demon kings are able to sense things thousands of miles away. These demon kings rarely appear in the human world. Even if they emerge in the human world, they would reincarnate in human form; assimilating with mankind while seeking to breakthrough realms…….

Li Xu occasionally got a sign-in system, and his life has been different from now on. Enjoy life, look at the scenery, sign in, spring flowers bloom, and face the sea.

- Description from novelbuddy

Raised as nothing more than a weapon, Xin Long was kidnapped and forged into a killer — his freedom severed, his name reduced to a whisper. In a world where trust is a death wish and mercy is a myth, he treads a path of blood and betrayal, outwitting ruthless foes and surviving inhuman trials. Yet, the deeper he delves into the shadows of Jianghu, the more he unravels a web of dark secrets that bind the martial world.Step into the dark side of Jianghu and witness the so-called Forgotten Tale — a story never meant to be told...