Riho is a Japanese professional wrestler signed with AEW. She is a former AEW Women's World Champion.
In 2006, Riho began her professional wrestling training at the age of 9. She was trained by Emi Sakura and made her debut for Ice Ribbon. She left Ice Ribbon after making her debut at the Wrestling New Classic. In September, she began working for Gatoh Move Pro Wrestling, where she spent the next several years. In 2014, she defeated Emi Sakura to win the IWA Triple Crown Championship. She began working outside of Asia in the last year. In September, she became the inaugural Super Asia Champion. Riho has also worked for DDT Pro Wrestling, Stardom, and Union Pro Wrestling.
In 2019, she made her debut for AEW at Double or Nothing. In October, she became the inaugural AEW Women's World Champion. After 133 days and several title defenses, she lost the title to Nyla Rose. In 2020, she took a hiatus due to COVID-19. In 2021, Riho returned to AEW and wrestled a few matches. In 2022, she faced Britt Baker for the AEW Women's World Championship and lost. She has recently returned to Japan due to an injury.