Dong Chang, the social eldest brother, has been in the old streets for twenty years. In his life, he only knows how to speak with his fists - until he is chased by his enemies and jumps into a river. When he opened his eyes, he became Zhang Qiang, a 16-year-old high school student who had just been in a car accident. As soon as I left the hospital, I was beaten by a primary school student on the street... The old brother pinched his frayed school uniform pants and looked at the students carrying schoolbags fighting in the distance. For the first time, he fell into confusion: How can these sixteen-year-old days be more difficult than fighting with the enemy?
