"I" was a mediocre but ambitious township teacher who fell in love with his female student "Jin". Later she was admitted to university and went to the city. "I" gave up his job and came to her city, and the two formally established their relationship.
In order to maintain her life, he began to survive hard, but still couldn't make ends meet. Later, in order to give "Jin" a birthday present, he carried out a successful robbery.
They lived a life without worries about food and clothing for a year, but "Jin" finally left him.
"I" became confused and wandered on the streets.
In the last stage of his life, he was stabbed to death on the street in order to save a little girl, and finally realized his childhood ideal - to be a hero.