In 1987, when tear gas exploded like firecrackers, a bloody man jumped into a female college dormitory and a female student treats him thinking he's an activist student fighting for the generation. Based on the handwritten notes of a man who escaped from a political prison camp in North Korea.

When Jo Gang-Ja attended high school, she was notorious for fighting. She gave birth to her daughter A-Ran in her late teens and became more responsible. Her daughter A-Ran is now a high school student, but A-Ran is bullied at school. Jo Gang-Ja decides to go back to high school to protect her daughter. Jo Gang-Ja becomes a high school student again.