Bai Hong and Su Ran's mothers were best friends. Their mothers made a marriage decision for them on the day they were born. Although they were childhood sweethearts, they always quarreled or fought whenever they met.
When they were in their second year of high school, Su Ran and her parents went abroad to study for four years.
After returning to China, she accidentally entered the company where she found Xiao Baihong. He also got acquainted with Ji Chen, a competitor of Baihong Company.
Idea: Don't eat lemons because they are so sour.