Take Gai Nie as an example, calculate that Wei Zhuang is one more year old than his age.

When he was 12 years old, he met Weizhuang for the first time;

When he was 15 years old, he saved Wang Zihan;

At the age of 17, he entered the Ghost Valley to study;

At the age of 20, he learned to go out of the valley;

At the age of 28, the Qin Dynasty was established, in 221 BC;

29 years old, defected from Xianyang Palace;

At the age of 30, he met Weizhuang again in the city of organs, 219 BC;

At the age of 31, Qin Shi Huang toured east to find Xianshan on the sea, in 218 BC;

Qin Shi Huang died at the age of 39, in 210 BC,

At the age of 47, the Han Dynasty was established, in 202 BC, and later went into seclusion.