Yū Ishino (born June 24, 1992) is a Japanese retired professional wrestler who performed under the ring name Kagetsu. He is best known for his tenure with World Wonder Ring Stardom, where he was a one-time World of Stardom Champion, two-time Goddesses of Stardom Champion and two-time Artist of Stardom Champion, and also for his time in Sendai Girls' Pro-Wrestling, JWP Joshi Puroresu, and many other independent promotions. After retiring in 2020, Ishino came out as a transgender man and currently serves as a police officer in the Tokushima prefecture.