Master Tian's Will, Actually I Have Another Master

Traveling through the supernatural world, Zhang Muchen bound the system, obtained Zhang Daoling's inheritance, embarked on the path of immortality, and became the strongest person in the Tianshi Mansion! Over hundreds of years. He carries a demon-slaying sword on his back, which can kill millions of demons and save the world countless times. He is revered as the Savior Sword Immortal by the world! The Ghost King revives and intends to turn the world into a bloody purgatory. With one man and one sword, he fought for three thousand miles and finally killed the Ghost King. However, he was seriously injured and had to stay in seclusion to recuperate. Hundreds of years passed quietly. The legend still lives on, but his real name has long been forgotten. The inheritance of Tianshi Mansion is also gradually withering away. It is jointly besieged by several ghost kings and is in danger... Seeing that the thousand-year inheritance of Shanmen is about to be destroyed. The contemporary Celestial Master takes out the will left by the previous Celestial Master and cannot open it unless his life or death threatens him. Above the will, it was clearly written—— "Actually, there is another master in Tianshi Mansion!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.