I, the Ancestor of the Holy Land Who Has Been Looking at Graves for Six Hundred Years

Traveling through the fantasy world, Lu Wushang became a tombkeeper at Tianyan Holy Land. In this world where strong men are rampant and fairies and demons are raging, he was originally weak and helpless and just wanted to live a peaceful life, but he did not expect to awaken the infinite upgrade system. As long as you kill, you can continue to level up! "Ding, you kill the Yin spirit +10, and the level increases by one." "Ding, you kill the Yin spirit +100, and the level increases by five." "Ding, you kill the Yin spirit +1000, and the level increases by ten." … The tomb is so dense that the evil spirits are killing them endlessly! Six hundred years passed by, and all his peers withered away, but Lu Wushang was the only one who stayed with the ancient tomb. Until one day, powerful enemies such as the true immortals from the foreign land and the demons from the forbidden land came to attack him. Lu Wushang, who had reached the full level, lazily hit him and slashed with his sword. Watching that sword split the earth and shatter the sky, all the enemies fell one after another... Lu Wushang suddenly understood. It turns out... He is already invincible! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.