1. Heroine: Su Wan - a southern girl, a talented girl from the Chinese Department of A University. In the early stage, she was gentle and delicate, full of longing for love. She fell into a trough due to the cheating of the school sweetheart. Later, she awakened in marriage and grew into an independent and sober working woman (later she joined a publishing company as a planner). She has tenacity hidden in her bones.
2. Male Protagonist: Lu Shiyan - the heir to the top wealthy "Lu Group" (known as the "Prince"), looks cold and ascetic, acts decisively, and is not good at expressing emotions, but in fact has keen observation, gradually reveals tenderness in the marriage, and his "contractual responsibility" for Su Wan turns into a deep preference.
3. Former male protagonist (school boss): Lin Ze - the boss of the Finance Department of A University. He has a sunny appearance and is good at creating romance, but in fact he is selfish and vain. Because he yearns for the resources of a higher class, he has an affair with a rich girl and cheats on her. Later, he tries to win back Su Wan but repeatedly encounters obstacles.
4. Female supporting partner (cheating target): Xia Mengyao - a girl from an art department with a well-off family. She has a arrogant personality and likes to compete for other people's attention. She was jealous of Su Wan and Lin Ze's reputation as the "golden girls on campus" and took the initiative to approach Lin Ze. Later, she found out that Lin Ze was not sincere and broke up with him.
