Upgrade Every Day and Become Invincible Starting from a Slave

The noble family controls destiny, birth determines life and death, and a lowly slave will never be able to stand up. Zhang Xun'an unexpectedly awakened to the heaven-defying system: Every day, you can upgrade once. Strength, body, bones, understanding... An ordinary body can reach the top. Since the laws of heaven are unfair and classes are hard to break, Then kill for nine days and overturn this eternal rule! In the 340th year of the Qin Dynasty, Emperor Wu ascended the throne through bloodshed. The gate of heaven opens, and the gods come to worship. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.