In fact, everyone has a book deep in his heart. This book is called memory, and deep in the memory are unfulfilled wishes and bumpy destiny. Jiang Zijie accidentally entered the world of memory by scanning the QR code, where there are memories of countless people. If a person's memory is a book, it is an ocean of books. Jiang Zijie also began to experience their memories. And changing those memories. How will she tamper with those memories?