Toru Owashi
On March 25, 2015, Narumiya defeated La Amapola to win the CMLL-Reina International Championship for the first time. After signing with Reina, Narumiya returned to CMLL in April 2015. Her two-week tour culminated on April 28 with her losing the CMLL-Reina International Championship to Princesa Sugehit. A rematch between the two took place back in Reina on May 5 and saw Sugehit retain her title. Another rematch took place on May 17 and saw Narumiya defeat Sugehit to regain the CMLL-Reina International Championship. On June 24, Narumiya took part in a Risa Sera produced Ice Ribbon event, where she teamed with Isami Kodaka and Yuko Miyamoto to defeat Sera, Kankuro Hoshino and Masato Inaba in a six-person intergender human hair deathmatch, after which the two former .STAP partners made peace with each other and ended their rivalry. On July 10, Narumiya made her first successful defense of the CMLL-Reina International Championship against La Comandante. On December 26, Narumiya received a shot at the Reina World Women's Championship, but was defeated by the defending champion, Ice Ribbon's Tsukasa Fujimoto. On January 17, 2016, Narumiya announced she was getting married and retiring from professional wrestling on March 25. On March 12, Narumiya returned to Ice Ribbon for a farewell appearance, reuniting with Risa Sera to unsuccessfully challenge Arisa Nakajima and Tsukasa Fujimoto for the International Ribbon Tag Team Championship. Due to her impending retirement, Narumia relinquished the CMLL-Reina International Championship on March 16. On March 25, Narumiya wrestled her final two matches. First she teamed with fellow Narcissist-gun members Syuri, Buffalo and Mineo Fujita in an eight-person tag team match, where they defeated the Shiri Gamikyō stable of Hikaru Shida, Gabaiji-chan, Toru Owashi and Yako Fujigasaki, and then she teamed with Syuri to defeat Maya Yukihi and Risa Sera in her retirement match.