Yu Ishino

is a Japanese female professional wrestler, who wrestles for Stardom. Kagetsu was trained by Sendai Girls' Pro Wrestling. She joined in April 2008 after her junior high school graduation. She had an exhibition match against Ryo Mizunami on July 27th, 2008. She made her official debut on August 24th, 2008 against Chikayo Nagashima.

In 2010, she changed her ring name from Yukari Ishino to Kagetsu.

In 2015, she left Sendai Girls and became freelance. In April 2016, she debuted for Stardom as a member of Oedo Tai.

On June 16, 2016, she teamed with Kyoko Kimura to capture the Goddess of Stardom Championship. The team held the titles until December 22nd, 2016, when they were defeated by Yoko Bito and Kairi Hojo. The team recaptured the titles on June 21, 2017 from Hiroyo Matsumoto and Jungle Kyona.

She took a break from wrestling on April 13, 2017, but returned on June 11th, 2017. She then became an official member of the Stardom roster on November 1st, 2017. She also became the leader of Oedo Tai in 2017.

On June 9th, 2018, she captured the World of Stardom Championship from Toni Storm.