Yuyuko Tokemiya is a character from the Touhou Project, a popular series of Japanese bullet hell games created by ZUN. She is known as the ghost princess and is the ruler of the Hakugyokurou, a realm for spirits. Yuyuko has a gentle and carefree personality, often seen enjoying food and taking naps. Yuyuko possesses the ability to manipulate death, allowing her to control spirits and even influence the concept of life and death. She is often accompanied by her servant, Youmu Konpaku, who is a half-human, half-ghost swordswoman. Together, they navigate the challenges of their supernatural world.