In the third year of Tianhe's reign in the Northern Zhou Dynasty, there was fine snow falling in Chang'an City. Yang Jian stood in front of the gate of Da Sima's Mansion, looking at the cold light refracted by the ice at the corners of the eaves. The eldest son Yang Yong, who is thirteen years old, is lying on a stone lion and tying a red rope to the door knocker. The youngest daughter Yang Lihua chases a lame orange cat across the bluestone bricks, sweeping the snow off the plum branches with the corner of her skirt. Such smoke and smoke caused his clenched fists to slowly loosen, and the three scars under the cuffs made his wrist bones ache - they were the marks left by blocking the paw of a black bear for the Emperor Wu of the Northern Zhou Dynasty when he accompanied Yu Wenyong on a hunt last month.