Xiao Yan, the emperor of the new dynasty, was actually designed by a thousand-year-old family to be demoted to a humble son-in-law and sent to the Lin Mansion, which was like a cold palace. When he was desperate, he awakened the [luck sign-in system]. As long as he is in a 'feng shui prosperous place', he can sign in every day and draw heaven-defying rewards: famous ministers through the ages, supreme military formations, black technology blueprints... Xiao Yan holds the military art of "Swordsmanship in the Snow" and is proficient in the art of feng shui of mountains and rivers. He lurks as a son-in-law and secretly accumulates strength. When the court was in turmoil and foreign enemies invaded, and everyone thought the emperor was in despair, he used the power of 'time travel' to return to key points to rewrite history, step by step. He first used Feng Shui techniques to gather the world's destiny, and then combined modern thinking with ancient military tactics to help loyal ministers rise and form a new army. In the end, he tore off the disguise of his son-in-law, led a million cavalry through the imperial city, and regained the throne with an even more unrivaled attitude, creating an unprecedented prosperous dynasty and ruling the world.
