Mio Shirai
On April 8, 2012, Haruhi was defeated in a singles match by her surprise opponent, Wrestling New Classic (WNC) representative and former Gatokunyan training partner Makoto. Haruhi and Makoto had their second encounter on April 18, when Makoto and Gami defeated Haruhi and Yuu Yamagata in a tag team match. On April 30, Haruhi took part in her trainer Toshie Uematsu's retirement match, where she and Shuu Shibutani were defeated by Uematsu and Ran Yu-Yu. Afterwards, Haruhi was sidelined for five weeks with an elbow injury. On July 16, Haruhi and Yuu Yamagata unsuccessfully challenged Gami and Tomoka Nakagawa for the Wave Tag Team Championship in a three-way match, which also included the team of Mio Shirai and Shuu Shibutani. On August 7, Haruhi defeated Mio Shirai for the first successful defense of the Garter Match Championship, nearly two and a half years after she had won the title. On September 3, it was announced that Haruhi and the returning Makoto had earned themselves a wild card entry into the 2012 Dual Shock Wave tournament. Despite initially opposing the partnership with Makoto, the team, dubbed "1st Impact", opened their tournament on September 25 with a win over Ayumi Kurihara and Mika Iida, after which Haruhi embraced the new partnership. However, the team went on to lose the following matches against Hikaru Shida and Yumi Ohka, and Shuu Shibutani and Syuri, and were, as a result, eliminated from the tournament. On November 27, Haruhi reunited with Makoto in a five-way tag team match, where they defeated Aya Yuki and Sawako Shimono, Cherry and Shuu Shibutani, Hikaru Shida and Nagisa Nozaki, and Ryo Mizunami and Yuu Yamagata to become the number one contenders to the Wave Tag Team Championship. 1st Impact received their title shot on December 16, but were defeated by the defending champions, Misaki Ohata and Tsukasa Fujimoto. On December 24, Haruhi made her debut for JWP, taking part in an eleven-woman Santa Cosplay Battle Royal, which was won by Nana Kawasa. On June 10, 2013, Haruhi made her debut for Wrestling New Classic, teaming with Gami in a "Wave offer match", where they defeated Shuu Shibutani and Yuu Yamagata. From May 6 to June 28, Haruhi took part in the 2013 Catch the Wave tournament. Despite opening with a win over Mio Shirai and later drawing with JWP Openweight Champion Arisa Nakajima, Haruhi lost her other four matches in the tournament and finished last in her round-robin block. On September 1, Haruhi entered the 2013 Dual Shock Wave tournament, teaming with Tomoka Nakagawa. Though the team managed to pick up big wins over Kana and Yumi Ohka, and Mio Shirai and Misaki Ohata, they were eliminated per pre-tournament stipulations after suffering their third loss in their fifth match on September 29 and not allowed to finish the tournament.