Sixty Years of Sign-Ins at the Imperial Mausoleum, Then I Instantly Defeat the Great Emperor

[Wish fulfillment + no female lead + sign-in + invincible + passionate] After transmigrating to the Great Li Dynasty, Xie Jin becomes an utterly ordinary guardian of the imperial tombs. With no talent for martial arts and no powerful background, Xie Jin can only accept reality and settle for scraping by for the rest of his life. Unexpectedly, he activates the Sign-In System! Sign in at the Qian Emperor’s tomb and receive the reward [Fortune Golden Dragon]! Sign in at the Kun Emperor’s tomb and receive the reward [Supreme Bone]! Sign in at the Gaozu Emperor’s tomb and receive the reward [Purple Heavens Thunder-Controlling Divine Art]! After completing sign-ins at all twenty-four imperial tombs of the Great Li Dynasty, Xie Jin has mastered profound, wondrous powers and become an Earthly Immortal, invincible in the world! On this day, a great calamity descends upon the world. Extraterritorial fiends run rampant, and lives are lost in droves. With the imperial capital surrounded and the dynasty on the verge of collapse, Xie Jin finally makes his move... The Supreme True Demon: You call me a demon? That guy slaughtered a million gods and demons with a single sword strike! The Four Marshals: Soldiers, follow me to conquer a nation! We’ll seize an ancient imperial tomb, and Ancestor Xie will grant us divine abilities and immortal arts! The Great Li Empress: Senior Xie Jin, I’m willing to lay aside my imperial phoenix crown. I only wish to serve at your side!