Yukari Yakumo is a fictional character from the Touhou Project, a series of bullet hell shooter games created by ZUN. She is known as a powerful youkai, specifically a gap youkai, who has the ability to manipulate boundaries. This allows her to control various aspects of reality, such as space and time, making her one of the most formidable characters in the series. In the games, Yukari often appears as a mysterious figure with a playful yet cunning personality. She is typically depicted wearing a traditional Japanese outfit and is associated with the color purple. Her character plays a significant role in the lore of Gensokyo, the setting of the Touhou Project.