The protagonist, a 24-year-old woman who recently graduated from a second-tier university. Her father was a special police officer killed in the line of duty a few days after her 18th birthday. Her mother remarried within three months of his death to her first love, and gave Ruan Sui'an a 50 million yuan check to buy out their relationship. She cut ties with her mother and moved back to her father's old hometown to live with her grandparents, fulfilling filial duties. After her grandparents passed away within two years, she returned to her father's large single-story flat. She is independent, loves freedom, and decided not to work despite having enough money to live comfortably. She has sharp intuition and is described as tough, having endured countless injuries since childhood without crying.
