Tea artist Su Cha and architect Shen Yanzhi went from being childhood sweethearts to falling apart. A misunderstanding on a rainy night caused the two to lose contact for seven years. When they reunited, Su Cha was guarding the tea recipe left by her mother at the time-honored teahouse, while Shen Yanzhi returned with the project of "restoring the ancient city teahouse". There are unsent letters hidden in the old things, and unsolved knots are floating in the tea cup - the truth about the case of Shen's father falling from the building, Su's mother's secret before her death, and Shen's mother's deliberate rejection of Su Cha, like tea foam. The two were tugging between the tea banquet and the drawings, love and hate fermenting in the fragrance of tea, until Shen Yanzhi knelt in front of the tea house on a rainy night: "I have been building the tea house for seven years, waiting for you to say a word." Su Cha held his frozen red hand. , Tears fell down the tea cup: "What I'm waiting for is not the tea room, but the Ah Yan who would cover the hand stove for me back then." The abuse lies in asking for it but not getting it, and the sweetness lies in breaking out of the cocoon and being reborn. Finally, a cup of "Bingdilian" tea can relieve the pain of half a lifetime.
