Emi Sakura
On September 22, 2017, Riho defeated Kotori in the finals of a tournament to become the inaugural Super Asia Champion. She made her first successful title defense on November 7 against Emi Sakura and afterwards announced she was going on an overseas tour. On March 31, 2018, she made her second successful defense of the Super Asia Championship vs Saki. Her third defense came against Jibzy in Bangkok, Thailand on May 12. Her next defense in Japan would be against Aoi Kizuki on July 28. A few weeks later she defended against Makoto in China, there was some controversy after the end of the match when Makoto complained that she kicked out before the count of three. On July 2, 2019, Riho was defeated by Emi Sakura in which after the match was over was given a farewell from Gatoh Move.