The "soul alchemy" setting in the context of the Republic of China concretely transforms memories, emotions, and obsessions into "substances" that can be traded and weaponized. The core high concept is: "Your memory is not your own, and even 'love' may be implanted by others." The heroine Su Niantang is a rare "natural alchemist", but the price of her golden finger is: every time she extracts a piece of other people's memories, she loses an equivalent amount of her past. Until she finally discovered that the "childhood" she cherished most was created by someone else.
