Ninja Cultivator

After failing to overcome the tribulation, when Yang Changqing opened his eyes again, he became a seven-year-old child of the Uchiha tribe. Outside the window, flames were blazing into the sky, and the heads of the tribe were missing - the night of genocide was underway. The cold voice of the system sounded in the mind: "Detection that the host is in a certain death situation. First mission: Complete the introduction of air into the body. Countdown: thirty seconds." He made the secret with his backhand and closed his eyes in the dry well in the back mountain and fell into meditation. Obito and Itachi's footsteps passed by the well entrance above, unaware that there was a monk at the first level of Qi Refining at the bottom of the well. After surviving, Yang Changqing discovered that the truth of the world was far crueler than he imagined: The sacred tree is not a divine object, but a harvesting tool for demons from outside the territory. Chakra is polluted energy, and ninjutsu is magic technique. Before this planet was harvested, it once had a name - Cultivation Star. And I am the last cultivator on this planet.