Youmu is a character from the Touhou Project, a popular series of Japanese bullet hell games created by ZUN. She is a half-human, half-ghost being known for her exceptional swordsmanship and ability to manipulate spirits. Youmu serves as the gardener of the Hakugyokurou, a place in the afterlife, and is dedicated to maintaining the gardens and protecting her master, Yuyuko Saigyouji. Youmu is often depicted with a distinct appearance, featuring a traditional Japanese outfit and a pair of swords. Her character embodies themes of duty and loyalty, reflecting her commitment to her responsibilities in the afterlife. Fans appreciate her unique blend of human and ghostly traits, which adds depth to her character within the Touhou universe.