The illegitimate son Jiang Xu has been secretly in love with Sunshine's Wen Yehe since he was in junior high school, but he buried his feelings deeply because of his low self-esteem. After reuniting in high school, Wen Yehe took the initiative to pursue love, melting his defenses with passion and warmth, and the two fell in love and lived together for a happy life. However, in the freshman year, Wen Yehe suddenly broke up without saying goodbye and broke up heartlessly, and Jiang Xu fell into an abyss of pain. A year later, the cancer diagnosis certificate in the cross-border package and the diary full of suffering revealed the secrets of the patriarchal family trauma and terminal illness she carried - she was using the last light of her life to let him live on a sunny day forever. Those misunderstood partings eventually become the most painful redemption and regret of youth.
Purpose: Even if life is full of regrets, the love and warmth that bravely rush to can still become the light that illuminates the soul and trigger in-depth thinking about "love, suffering, and growth".