In a convenience store on a rainy night, Gu Shenyu and Xu Qingshi reunited unexpectedly after three years of separation. The two were once brother and sister in the chemistry department. However, they lost contact because Gu Shen lost contact when he went abroad. Now Xu Qing is a staff member of the mountaintop weather observation station.
An accidental help of ginger tea involved the undelivered ginger tea at the airport three years ago and the unspoken farewell - Gu Shenyu temporarily boarded the plane early that year, which caused the news to be interrupted. Xu Qingshi had left ginger tea for him at the airport convenience store but no one accepted it. While walking on the mountain road on a rainy night, misunderstandings in the past were gradually solved. Gu Shenyu showed up with hot ginger tea prepared in advance and a note written by Xu Qingshi that had been treasured for many years. The promise on the back of the note to "wait for you to come back to watch the sunrise" was also reflected in Xu Qing's response of "it will be sunny tomorrow", so that this emotion that had been shelved by time finally received the remaining warm signal of running in both directions.
Concept: Gu Shen and Xu Qing reunited at a convenience store on a rainy night. They borrowed a cup of ginger tea to resolve the misunderstanding they had lost due to going abroad three years ago. They regained the old covenant of "watching the sunrise on the top of the mountain" and received a two-way response to their shelved emotions.
