This is a lamentable story. A sudden car accident not only robbed the teenager Lu Zhiyuan of his sight, but completely shattered all his hopes of taking the college entrance examination. Just as he fell into despair and self-seclusion, the young nanny Zhu Meili walked into his world. With endless patience and gentleness, she opened up the teenager's closed and resistant heart bit by bit, letting him feel the warmth of light again in the darkness. However, just when Lu Zhiyuan began to deeply rely on this warmth, Zhu Meili suddenly left without saying goodbye. Later, Lu Zhiyuan, having regained his sight, resolutely embarked on a journey to find someone, vowing to find that "beautiful older sister" who haunted his thoughts.