Mayu Iwatani

is a Japanese professional wrestler currently signed to the World Wonder Ring Stardom promotion. Since making her debut in January 2011, she became a one-time World of Stardom Champion, two-time Wonder of Stardom Champion, one-time High Speed Champion, one-time Goddess of Stardom Champion, and a four-time Artist of Stardom Champion, while also having won the 2015 and 2016 Cinderella Tournaments. She also makes appearances for Stardom's American partner Ring of Honor (ROH), where she is a former one-time Women of Honor World Champion . Dave Meltzer of the Wrestling Observer Newsletter has called Iwatani and fellow Japanese workers Io Shirai and Kairi Hojo "three of the best wrestlers in the world Iwatani grew up on the countryside of Mine, Yamaguchi with her family, which includes two older brothers. In primary school, she practiced judo and high jump, but in high school, she began isolating herself from society, spending three years mostly indoors.