Su Wan is the last permanent resident of Cheong Wa Dae and the "living archive" of this century-old house. Her grandfather was the housekeeper of the Blue House, and her parents died accidentally while protecting the cultural relics of the old house when she was young. Since then, she has taken root here as a "guardian". At thirty years old, she has neat short hair, her fingertips are always smelling of the light fragrance of restored ancient books, and she always wears a copper bookmark passed down by her grandfather on her sleeve - a miniature of the eaves of the Blue House when it was first built.
