A twenty-year-old boy was locked up in a house by his mother for a whole year. One year later, his mother assigned him a new identity - Lin Lin. He entered Qingkui University to study, and also got close to the girl who loved painting. In the end, this girl could unlock the shackles in his heart. Will he get out of depression, or will he, like his father, jump to end all pain? This book tells the story of a familial hereditary depression patient who goes by the pseudonym Lin Lin and tries to integrate into society again.