Zhuang Zi'ang was the golden child—top student and number one in exams—until his parents' divorce left him unloved and neglected. At just 18, he is diagnosed with a terminal illness, with only three months left to live. In his final months, Zhuang Zi'ang decides to shed his obedience and embrace his true, rebellious self. While skipping class by climbing over a wall, he unexpectedly meets Su Yudiel—a girl who becomes a ray of light in his last journey.