Lu Zhao, a third-class servant in the Hou Mansion, has been treated with cold eyes for ten years because he is the illegitimate son of the former master of the house and his wife. Accidentally activate the "Daily Bing Sign-in System" and sign in at various places such as the woodshed, the well, the stable, etc., And gradually obtain heaven-defying rewards such as the fragments of "Xuan Bing Jue", the century-old Zhuguo, and the Treasure Appraisal Eye. He originally wanted to keep a low profile and save enough money to fly away, but because he saved the princess Xiao Qingtang who fell from her horse, he was involved in the undercurrent of the Hou Mansion - from shielding the princess's knife and exposing his martial arts, to exposing the side wife's conspiracy to secretly exchange tributes, to solving the revenge crisis for the Hou Mansion, Lu Zhao gradually grew from a "bastard" who could be bullied by everyone to a pillar of the Hou Mansion. Xiao Qingtang, the cold-faced princess, is also getting along with her. From hating "humble servants" to secretly developing feelings for him, she even goes against the family to protect him. The two worked together to solve the old case of the Hou family's extermination twenty years ago. In the end, Lu Zhao's life experience was revealed to be the orphan of King Dingbei. He and Xiao Qingtang overcame the identity barrier and established a counterattack love relationship that was first cruel and then sweet.
