Io Shirai
On October 16, 2015, Garrett made her debut for Japanese promotion World Wonder Ring Stardom, during their first American tour in Covina, California. She teamed with Melina in a tag team match, where they defeated Hudson Envy and Thunder Rosa. On October 25, Garrett made her Japanese debut for Stardom, when she and Hiroyo Matsumoto defeated Goddess of Stardom Champions Io Shirai and Mayu Iwatani in a non-title match. On November 8, Garrett and Matsumoto took part in the 2015 Goddesses of Stardom Tag Tournament, where they made it to the finals, before losing to Shirai and Iwatani in a match, which was also contested for the Goddess of Stardom Championship. On November 15, Garrett successfully defended the NWA World Women's Championship against Holidead, which marked the first time in 36 years that the title had been defended in Japan. On November 23, Garrett defeated Io Shirai in a double title match to retain the NWA World Women's Championship and win the Wonder of Stardom Championship. After nine successful defenses, Garrett lost the title to Kairi Hojo on May 15, 2016. On May 21, Garrett took part in a tournament to crown the inaugural SWA World Champion, where she was defeated by Toni Storm in the semifinals.