In a corner of the small town, there is a second-hand bookstore called "Time Bookstore". It is like a corner forgotten by time, quiet and old. The first time Lin Yu walked in here was to look for an out-of-print poetry collection, but he met Su Yao next to the bookshelf filled with old books. Su Yao was standing on tiptoes, touching a book with a dark blue cover with her fingertips, as if touching a distant and beautiful dream. Lin Yu helped her take down the book by mistake. Their fingers touched inadvertently. Su Yao's cheeks turned slightly red and she thanked her softly. Lin Yu looked into her eyes and her heartbeat accelerated inexplicably. Since then, "Time Bookstore" has become their secret base. Every weekend, they will share each other's joys and sorrows surrounded by books.