Io Shirai
On August 25, Sachiko announced that, after getting married, she was retiring from professional wrestling on January 17, 2016. On September 16, Sachiko and Chisako won another tag team title, when they defeated Meiko Tanaka and Sareee to win the vacant World Woman Pro-Wrestling Diana (WWWD) World Tag Team Championship. On September 22, Sachiko and Chisako made their first successful defense of the JWP and Daily Sports Women's Tag Team Championships against Kayoko Haruyama and Tsubasa Kuragaki. The following day, Sachiko and Chisako failed in their attempt to capture another tag team title, World Wonder Ring Stardom's Goddess of Stardom Championship, from Io Shirai and Mayu Iwatani. On October 11, Sachiko and Chisako defeated Kyoko Kimura and Takumi Iroha in a decision match to become the inaugural Sendai Girls World Tag Team Champions, becoming "quadruple crown tag team champions" in the process. In November, Sendai Girls' Pro Wrestling and Stardom held two shows together that pitted wrestlers from the two promotions against each other. During the second event on November 15, Sachiko unsuccessfully challenged Io Shirai for the Wonder of Stardom Championship. On December 27, Sachiko and Chisako lost the JWP and Daily Sports Women's Tag Team Championships to Arisa Nakajima and Tsukasa Fujimoto.