Childhood sweethearts Su Wanyi and Lu Zhiyan spent the sweetest childhood under the green plum tree in Jiangnan Qingxiang. They once thought they were bound to each other for life, but time passed and the waves of fate pushed the two to different paths. The estrangement caused by family changes, misunderstandings, suspicions, and involuntary choices have turned the boys and girls who once held hands to pick green plums into strangers across the mountains and seas. Lu Zhiyan's coldness and alienation, Su Wanyi's persistent expectation, have repeatedly pulled back over the years. The sweetness of the green plums has been turned bitter by the years. When the snow falls, the love turns to ashes. Can they still find the fragrance of the green plums that was wetted by the rain in the devastated past? This is a sadomasochistic love story that goes from being in love at a young age to falling in love with ashes. It depicts the beauty and brokenness of childhood sweethearts.