Urban Grave Robbery: the God-Eating Sword Takes Me to Kill Through the World

Bite! It is detected that the host is bound to the ancient god-eating fierce sword, and the unlimited killing and immortality system is opened] [The only rule of the system: killing, absorbing power, proving the Tao, unlimited improvement in cultivation] [Current World: Xuanling Continent·Outskirts of Qingyang City·Heifeng Ridge] [Current cultivation level: None (mortal body)] [Effect of the God-Eating Sword: Kill any living being, and immediately extract its lifetime cultivation, blood essence, and soul power, and convert it 100% into the host's own cultivation, with no side effects and no bottlenecks]