Zhuang Ziang has been a so-called child of other people's family since he was a child. He is a good student every year and ranks first in the exam. However, because his parents divorced and his father reorganized the family, his father did not love his mother. At the age of eighteen, Zhuang Ziang was diagnosed with a terminal illness and had only three months left to live. In the last three months, Zhuang Ziang decided to release his inner rebellion and wildness and be his true self. When he climbed over the wall to skip school, he met the girl Su Yudie by chance. On the last journey of his life, a beam of light came in.