- The heroine Lin Qiran: She was once a bright and enthusiastic talented piano student. She was forced to drop out of school after a sudden change in her family. In order to raise money for her seriously ill mother, she signed a "three-year contract" to become Jiang Yuanzhou's hidden wife. Her temperament changed from fiery to tolerant, and her love was hidden in the eyes that hesitated to speak countless times.
- Male protagonist Jiang Yuanzhou: Heir to a business empire, with a cold and paranoid personality. He has an extreme distrust of "emotions" due to his childhood shadow. He believes that Lin Qiran is only close to him for money. He uses indifference and humiliation to cover up the throbbing deep in his heart, but gradually loses control in the hurt.
