In "The Father of the Magic Way", Yang Xue's finger was crushed by the carriage of Chang Ci 'an, Chang Ping's father. At that time, Yang Xue was only seven years old and was cheated by Chang Cian and beaten again and again. Chang Cian didn't keep his promise, and Yang Xue was knocked down by Chang Cian when he questioned him. Chang Ci 'an's carriage directly ran over Yang Xue's left hand, and his little finger was ground into a paste on the spot.

Yang Xue has no parents and has been wandering the streets since he was a child. Because he has no money, he especially yearns for food, especially sweets. One day when he was seven years old, Yang Xue was wandering in the street. Chang Cian sat in the inn and waved to Yang Xue.

Chang Cian told Yang Xue that when he delivered the letter to the designated place, he gave the snacks on the table to Yang Xue. Yang Xue wanted a snack, so he sent a letter. As a result, he was beaten by the messenger and went back to find Chang Cian. Chang Cian left again, leaving no snacks. Yang Xue was also beaten by the waiter in the inn.

After Yang Xue left the inn, he met Chang Cian who was about to leave. Yang Xue followed him for snacks. As a result, Chang Ci 'an took it out on Yang Xue for being beaten, ignored Yang Xue's request for snacks, and left directly in a carriage.

Yang Xue is young and ignorant, and always asks the carriage for snacks. Chang Cian was very angry and hit Yang Xue with the whip of the driver. Yang Xue fell to the ground and didn't forget the snacks. As a result, Chang Cian's carriage ran over Yang Xue's left hand, and his left hand was broken and his little finger was crushed directly. So Yang Xue always took black gloves to cover up the fact that he was missing a finger.