Zhuang Zi'ang has always been the "model child" – top grades, student awards. But his seemingly perfect life takes a hit after his parents' divorce and his father's remarriage, leaving him feeling neglected and unloved. At eighteen, he receives a devastating diagnosis: a terminal illness with only three months to live. With nothing left to lose, Zhuang Zi'ang decides to shed his good-boy image and embrace his rebellious, wild side for the time he has left. When he skips school by climbing over the wall, he stumbles upon Su Yudiel, a girl who brings a ray of light into his final journey.