Mūran is a slave merchant in the world of the anime Possibly the Greatest Alchemist of All Time. She owns and operates the Mulan Slave Company, a business through which she trades in slaves. Her most notable transaction in the story is selling the characters Sofia and Maria to the protagonist, Takumi Iruma. Despite the nature of her profession, Mūran is depicted as someone who takes considerable care of the slaves she sells; she maintains specific rules governing their treatment and welfare, indicating that she does not view them merely as commodities but as individuals deserving of basic standards of care. This suggests a pragmatic but not entirely callous personality. Her motivations appear to be commercial, as a merchant seeking profit, yet her personal code of conduct implies a sense of responsibility. In the story, her role is that of a supporting character and a facilitator, providing Takumi with key companions early on. There is little shown about her personal background, significant character development over the course of the narrative, or any notable combat or magical abilities. Her key relationships extend primarily to her clients and the slaves she trades, with the transaction with Takumi being the most directly impactful on the main plot.