Under the old locust tree in the military compound, seven-year-old Lin Wanxing clutched the corner of fourteen-year-old Lu Tingxiao's clothes and made an ignorant lifelong promise. At that time, Lu Tingxiao, whose parents were dead, was adopted by the Lin family. He regarded her as a sister who needed to be protected, but he did not understand the girlish thoughts that had been hidden in her eyes for twelve years.
An engagement that the elders longed for tied the two into a marriage siege called "responsibility." Lu Tingxiao's world was filled with the righteousness of family and country and the mission of the army, but it could not accommodate Lin Wanxing's full love; the hot soup she boiled became cold and hot, and the scarf she knitted gathered dust, and all she got in exchange was his alienation and indifference. A gentle reminder at the celebration banquet became the last straw for her. The moment the divorce agreement was written, twelve years of obsession finally became a thing of the past.
Lin Wanxing went to the windy and sandy Hongya Bay and found a new life in the wasteland medical station. His life of saving lives and healing the wounded was dull but practical. And the belated awakening finally woke up Lu Tingxiao - he stood guard in the empty apartment and looked at the withered gardenias, and then he realized that he had lost the girl who was full of him.
When the gentle and steady garrison commander Shen Yan appeared in Lin Wanxing's life, the wind of the wilderness finally blew away the haze of the past. He accompanies her to watch the sunset at Yingzui Cliff, protects her through the mountain road to collect herbs, and heals the scars in her heart with just the right amount of gentleness.
The flowers of the old locust tree have withered and bloomed again. The moonlight in the military compound is still cold, but the wasteland of Hongya Bay is filled with warm sunshine. This is a story about miss and redemption. Some people regret alone in their memories, while others join hands in the new life for the rest of their lives. It finally proves the saying - love is tenderness at the right time.