紫雷イオ
On April 27, 2015, Yoneyama made her debut for the newly revived FMW promotion, teaming with Kagetsu in a tag team match, where they were defeated by Miss Mongol and Ray. On December 13, Yoneyama and Tsubasa Kuragaki defeated Kagetsu and Kaho Kobayashi to win the Oz Academy Tag Team Championship. On December 22, Yoneyama defeated DJ Nira at Gatoh Move's year-end show to win the IWA Triple Crown Championship. She lost the title to Riho on June 22, 2016. On September 11, Yoneyama and Kuragaki lost the Oz Academy Tag Team Championship to Hikaru Shida and Syuri. On June 17, 2017, Yoneyama won the Artist of Stardom Championship for the third time, when she, Hiroyo Matsumoto and Jungle Kyona defeated AZM, HZK and Io Shirai for the title. On July 2, Yoneyama and Cherry defeated Yuki Miyazaki and Yumi Ohka to win the Wave Tag Team Championship. They lost the title to Hiroe Nagahama and Kaho Kobayashi in their first defense on August 12. The following day, Yoneyama, Kyona and Matsumoto lost the Artist of Stardom Championship to HZK, Io Shirai and Viper, also in their first defense.