Fantasy: Starting Kill Upgrade System

There are thousands of races in the sacred land, but the human race is weak. Fang Gan travels through the wilderness and activates the killing upgrade system. Murderous energy can be used to upgrade. From then on, there was a black-clad killing god in the wilderness! The leader of the ancient country: "This boy has such a terrifying talent!" The Holy Lord of the Holy Land: "The younger generation should respect this son!" The kings of all the people said: "My clan, Fanggan, has the appearance of a great emperor." The genius of all races: "I would like to call him, the King of Enlightenment!" … Nine heavens and ten earths, hundreds of millions of races: "The God of Death is here again, everyone, run away!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.