Mio Shirai
Shibutani returned from Mexico on December 31, 2007, to take part in JWP Joshi Puroresu's 5th Junior All Star event, where she, Asuka Ohki and Cherry defeated Kana, Misaki Ohata and Tomoka Nakagawa in a six-woman tag team match, with Shibutani pinning Ohata for the win. Four days later, Shibutani returned to Wave, when she teamed with Kaoru in a tag team match, where they were defeated by Bullfight Sora and noki-A. During the rest of the year, Shibutani began teaming regularly with Kana. On March 28, Shibutani made her debut for the Ice Ribbon promotion, teaming with Riho in a tag team match, where they defeated Hiroyo Matsumoto and Makoto. During the first three months of 2008, she also made regular appearances for the NEO Japan Ladies Pro Wrestling promotion. For her first sixteen months in Wave, Shibutani was officially a freelancer, but on January 4, 2009, the promotion announced that she had signed a contract to become an official member of its roster. Also in January, Shibutani formed a new partnership with Ayumi Kurihara. In March, Shibutani and Kurihara entered the TLW (Totally Lethal Wrestling) World Young Women's Tag Team Championship, defeating Hanako Kobayashi and Misaki Ohata in their first round match on March 20, before being eliminated in their semifinal match by Moeka Haruhi and Tomoka Nakagawa on March 25. From June to July, Shibutani took part in the first ever Catch the Wave tournament, where she finished with one draw and two losses, failing to advance from her round-robin block. On September 21, Shibutani won the Young Oh! Oh! tournament, defeating Mio Shirai and Ryo Mizunami in a three-way final match. The following November, Shibutani, Ayumi Kurihara and Kana took part in a captain's fall six-woman tag team tournament, where they made it to the finals, before losing to Gami, Io Shirai and Mio Shirai. In May 2010, Shibutani entered the 2010 Catch the Wave tournament, but again failed to make it out of her round with a record of two wins and two losses. In August, Shibutani tore both her meniscus and anterior cruciate ligament and was sidelined from in-ring action.