On April 22, Yoneyama faced Emi Sakura in a special singles match, where the loser would have to join the winner's promotion. Sakura won the match and, as a result, Yoneyama was forced to join her new Thailand-based Gatoh Move Pro Wrestling promotion. On May 4, Yoneyama and Sakura defeated Command Bolshoi and Rabbit Miu to win the vacant JWP Tag Team and Daily Sports Women's Tag Team Championships, taking the belts with them to Thailand three days later. Upon joining Gatoh Move, Yoneyama, along with male wrestler Madoka, began helping Sakura train wrestlers for the promotion. Yoneyama and Sakura, now known collectively as the "Tai-Pan Sisters", returned to JWP on June 17 to make their first successful defense of the JWP Tag Team and Daily Sports Women's Tag Team Championships against the team of Arisa Nakajima and Manami Katsu. Yoneyama and Sakura made their second successful defense on July 15 against the team of Kazuki and Morii, after which they changed their team name from the Tai-Pan Sisters to "Reset". On August 19, Reset lost the titles to Arisa Nakajima and Command Bolshoi in their third title defense. On September 9, Yoneyama and Sakura defeated Hanako Nakamori and Morii in a tag team match, after which the two agreed to join Reset to form the "Heart Move Kei Reform" (HMK) stable. On September 14, Yoneyama returned to the United States and Chikara as she, Command Bolshoi and Tsubasa Kuragaki entered the 2012 King of Trios in Easton, Pennsylvania as Team JWP, defeating The Throwbacks (Dasher Hatfield, Mark Angelosetti and Matt Classic) in their opening match of the tournament. The following day, Team JWP was eliminated from the tournament in the quarter-finals, after losing to F.I.S.T. (Chuck Taylor, Icarus and Johnny Gargano). On the third and final day of the tournament, Yoneyama teamed with Manami Toyota in a tag team match, where they were defeated by Bolshoi and Kuragaki. Back in JWP, the first big match between HMK and the JWP Seikigun ("regular army") took place on October 7, when Yoneyama, Sakura, Nakamori and Morii defeated Arisa Nakajima, Command Bolshoi, Kayoko Haruyama and Manami Katsu 3–0 in an eight-woman captain's fall elimination tag team main event, with Yoneyama scoring the deciding pinfall over the JWP Openweight Champion Haruyama. Afterwards, Yoneyama was named the number one contender to Haruyama's title. On October 21, Yoneyama failed in her title challenge against Haruyama. On November 10, Yoneyama made a special appearance for Pro-Wrestling: EVE in Sudbury, Suffolk, England, teaming with April Davids in a tag team tournament. After defeating The Blossom Twins (Hannah and Holly) in their first round match, Yoneyama and Davids were defeated in the finals of the tournament by Bete Noire and Viper. On December 24 at JWP's year-end event, Yoneyama was defeated by Command Bolshoi in a singles grudge match. After the match, the two seemingly buried their hatchet. On January 6 at JWP's first event of 2013, Yoneyama and Morii were defeated in a tag team match by Kazuki and Sachie Abe, with Kazuki pinning Yoneyama for the win. Following the match, Yoneyama thanked the fans in attendance for their support during the past thirteen years and announced that she was resigning from the promotion. She, however, announced that she reveal the actual date of her resignation at a later date. JWP confirmed the upcoming resignation the following day. On January 13, Yoneyama teamed with Sareee in a tag team match, where they were defeated by Arisa Nakajima and Kay Lee Ray. Following the match, Yoneyama announced that she would be wrestling her final JWP match on January 27. On January 27, 2013, Yoneyama wrestled her JWP farewell match, a six-woman tag team match, where she, Hanako Nakamori and Morii were defeated by Arisa Nakajima, Command Bolshoi and Kana, with Nakajima pinning her for the win. Following the event, Yoneyama announced that in the future, she would be working as a freelancer.