I Have Been Signed to the Imperial Mausoleum for Thirty Years, and I Am Invincible in the World

Traveling through the Great Xia Dynasty, he became the deposed prince who was demoted to the imperial mausoleum. Without the emperor's order, it cannot be obtained. Fortunately, the 'god-level sign-in system' has been awakened. As long as you keep signing in, you will get various rewards. You can get different rewards by signing in at different places. [Sign in at the tomb of Emperor Xuanwu and get the 'Ancient Holy Body'! [Sign in at the ancient Yaozun's mausoleum and get the 'Eternal Medicine Cauldron'! [Sign in at Emperor Xia Zu's mausoleum and get 'Great Xia Luck'! …… I don't know how many times I have signed in and how many years have passed by. I only remember that day when the imperial capital of the Great Xia Dynasty was invaded by evil spirits. The civil and military palaces were stained with blood. The princes suffered heavy casualties, and Great Xia was in danger. The demoted prince walked out of the imperial mausoleum. With a wave of his hand, the demons were wiped out and all the enemies were slaughtered.