Three years ago, his mother ran away from home and died in a car accident. Zhao Qi and his father have been in an anxious state of Cold War hostility for a long time. After his sister Zhao Yu went to study abroad, Zhao Qi and his childhood sweetheart Yang Tong studied in the same university. When they learned that Lin Wanchun, a Department of Civil Engineering student, was pursuing Yang Tong, Zhao Qi and Lin Wanchun quietly started a battle of wits and courage to defend their love. Zhao Qi has always teased and tormented Yang Tong since he was a child. He couldn't tolerate that Yang Tong would fall in love earlier than him, and that he would fall in love with another girl.
Then when my sister who was studying abroad came back to China, everything changed.