Kagari Yuuka is a character from the Touhou Project, a popular series of Japanese bullet hell games created by ZUN. She is known as the "Flower Master of the Eastern Garden" and is often depicted as a young girl with long green hair and a cheerful demeanor. Yuuka has the ability to manipulate flowers and is associated with the concept of nature and beauty. In the games, Yuuka is portrayed as a powerful youkai, which is a type of supernatural creature in Japanese folklore. She often appears in various Touhou titles, where she engages in battles with other characters. Despite her playful personality, she can be quite dangerous, reflecting the duality of her character as both charming and formidable.