An office worker, Lin Wan, accidentally crosses into a historical fiction book, becoming a minor supporting character with a short-lived fate. Knowing the predetermined course of the story, she is unwilling to follow the original trajectory and is determined to take control of her own life. Relying on her modern knowledge, she calmly plans her life and carefully manages her surrounding relationships. She delves deeply into various kinds of knowledge and skills, calmly dealing with the storms and disputes around her, and establishes a secure foothold. As the years flow by, she resolves various situations with gentleness and wisdom, slowly living out a poised life of her own, and finds warmth and light amidst the hustle and bustle of worldly affairs.