Time Travel: Activate the System After Being Reborn as a Tomb Keeper

The protagonist Zhang Wei travels through the Great Yan Dynasty and becomes the guardian of the imperial tombs. I thought that the rest of my life would be spent in peace, but the sign-in system was accidentally activated. He can sign in in front of different imperial mausoleums such as the Yellow Emperor's Mausoleum and the Yan Emperor's Mausoleum, and receive rich rewards such as the Yellow Emperor's Scripture and the Nine-turn Burning Sky Flame. Zhang Wei adheres to the principle of low-key development and has been in the imperial mausoleum for sixty years. Then head to the New World!