He is a "barbarian" from outside the Great Wall, with the tenacity and wolf nature endowed by the grassland, but in the fireworks of the Central Plains civilization, he saw a way of survival that was different from nomadic migration. From hunters chewing frozen mutton to cultivators cultivating wheat fields with hoes; from ignorance of the rules of the Han Dynasty to finding a balance in the interweaving of farming, laws and ethnic groups, Agula's footsteps are at the forefront of the collision of two civilizations.