Konoha: I Kill Ghosts in the Ninja World and Become Immortal

Travel through the Leaf Village and become Uchiha Sasuke. I thought that I would reach the top of the ninja world like the original owner. But he didn't expect that this ninja world was completely different from the ninja world he knew. This world has long been occupied by demons! The Ninja Village has long been turned into a farm for monsters! Humans are just food for monsters! And Ninja, just quality food! The scariest thing is that only I know this fact! Fortunately, the panel was awakened. Lifespan can be consumed to increase skill proficiency. And killing evil spirits can increase your lifespan. After discovering this fact, these terrifying demons were no longer man-eating demons in Uchiha Sasuke's eyes. Rather, they are precious elixirs of immortality. Set a small goal first: 10,000 years of life! ! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.