How did the money come in and how did it get back?

Well, it's because when Xiao Yang eloped with Yu Fang at the railway station, the money came in just in front of Yu Fang's motorcycle, and Yu Fang didn't brake, so when he turned the corner, he turned to the foot where the money came in, overturned him, fell on a bump next to him, and then fell to the ground, hurting his spine, and fell down like this.

Later, he recovered slowly through rehabilitation treatment in Beijing, but he could only stand up and walk. It still doesn't seem to work. I didn't talk about it after the TV series.