Lin Wan (35 years old), who was frustrated in both career and love, traveled back to the age of 18 and was a senior in high school when she was at the bottom of her life.
At that time, because of her willfulness, she refused the breakfast prepared by her mother and said something bad to her. On that day, her mother was killed in a car accident while returning to deliver an umbrella. This became a wound that she could not heal throughout her life. He broke up with his first love due to misunderstanding, causing them to miss each other for ten years; giving up important opportunities for the so-called "friendship". Can she change everything if she starts over?