Lin Mengyun awakens from an illusion to find herself surrounded by vermilion palace walls and endless halls. Thus begins her life deep within the imperial palace. At first, she is bewildered and uneasy, struggling to adapt to the rules and daily routines of this unfamiliar place. Fortunately, along the way, she befriends sisters who share her temperament and is also fortunate enough to receive the care of a noble benefactor. As the days and nights pass, amid every brick and tile and the changing seasons, she gradually finds a place for her true self. Through the quiet, endless passage of time, she comes to understand herself, slowly discovers inner peace, and carves out her own path in life within the palace walls.