Medicine Melancholy is a doll youkai from the Touhou Project series, specifically introduced in the game 'Touhou Suimusou: Immaterial and Missing Power'. She resides in a field of lilies of the valley and is known to be a living doll that gained sentience after being left in the field for many years. Medicine's character revolves around her quest for independence and her disdain for humans due to their treatment of dolls. Her ability involves manipulating poison, making her a formidable opponent. Her role in the series emphasizes themes of freedom and empathy towards unconventional beings.