Sheng Lin met an old man running a stall and got a "note". He wanted to punish the people who had hurt him, but he was squeezed by an intermediary in the factory. When he used notes to punish the agent, he was punished by the agent's son and the notes were destroyed, which made him understand that revenge cannot solve the problem. It also implies that only by facing it positively can he get out of the predicament, embrace new life, and finally successfully move towards new life.
