Unrestrained swordsman Huo Zhan Bai seeks medicine for a friend’s child and encounters pharmacist Xue Zi Yue. Over eight years of daily interaction, they progress from having their own convictions to a deepening understanding, mutual redemption, and a promise to meet under a plum tree the following year. However, due to the responsibilities they bear, they find it difficult to express their love, leaving behind a regret of eternal separation. Amidst the joyous toasts in the snowy night and a farewell across a thousand miles, a poignant and unforgettable missed opportunity unfolds—a love destined to be unable to endure, depicting a tale of redemption and letting go in a life-and-death romance. (Source: iQIYI) ~~ Adapted from the novel "Seven Nights Snow" (七夜雪) by Cang Yue (沧月).