I Was Reborn as a Genius in Another World

When modern civilization collides with primitive civilization, will the spark of new civilization emerge from the collision or will it disappear in the conflict of primitive civilization? Watch the protagonist travel back to primitive civilization, and how the protagonist with the knowledge of modern civilization survives under the system of primitive civilization, lives and even reaches the peak of life. Pay attention to the rebirth of me as a genius in another world and learn the production skills of traveling back to primitive civilization. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.