Xu Mian's dark novel was perfectly brought into reality by the new landlord Lu Chen. He watched her obsessively for three years, learned how to restore the ancient books she loved, and bought the entire street where she was. When she discovered that this gentle man was actually the reader who controlled all her words - "Xu Mian," he handed over the necklace key, "let me belong to you forever." This was a two-way redemption that started with voyeurism, repairing each other's incomplete lives in a second-hand bookstore.