Gyokuken Haba is a supporting character in the anime and manga series Jujutsu Kaisen. He is a student from Kyoto Jujutsu High School and participates in the Kyoto Goodwill Event, showcasing his abilities as a jujutsu sorcerer. Gyokuken uses a Cursed Tool, which is notable for extending and transforming, allowing him to attack opponents from a distance. While not a major character, he adds depth to the diverse roster of sorcerers and highlights the rivalry between the Tokyo and Kyoto schools.