The heroine travels into a low-magic fictional world of the Republic of China and obtains a "Book of Destiny" that can change the fate of others. On the surface it is metaphysics and supernatural, but in reality it is the ultimate ethical choice + political suspense + sweet love. The heroine must repeatedly compete between "sacrificing others to protect herself" and "exchanging forgotten memories for strength". Each time she "takes orders" deepens the sense of tragedy and emotional bonds.
