In 2004, she was ranked fourth in the 51 kg class, but left the university after three years before graduating and stopping wrestling.
[5] Nagano moved to Tokyo in 2005, where she joined a modeling agency of independent wrestling and started talent activities.
She made her professional debut against Megumi Fujii and lost via submission (triangle choke) at Smackgirl: Starting Over at Korakuen Hall on December 26, 2007 (2007-12-26).
[8] She faced Seo Hee Ham in the tournament semi-finals on December 17, 2010 (2010-12-17) at Jewels 11th Ring[9][10][11] and was defeated by split decision after two rounds.
[12][13] Nagano was scheduled to face Emi Murata at Jewels 12th Ring on March 11, 2011 (2011-03-11) in Tokyo, Japan,[14] but the event was cancelled after the Tōhoku earthquake and tsunami earlier in the day.
[34] Nagano's next fight took place on September 22, 2012 (2012-09-22) when she faced Tomo Maesawa at Jewels 21st Ring.
[37][38] On October 27, 2012 (2012-10-27), Nagano competed outside Japan for the first time when she faced Alexandra Chambers at Brace For War 17 in Australia.
[61] However, on February 6, Nagano announced she was pregnant and would have to pull out of her exhibition match with Saori Ishioka.
[64] After competing in Ice Ribbon for a few months, it appeared that she was no longer with the promotion as of February 2010 (2010-02); apparently focusing more on her MMA career after being pushed as a top star in Jewels.
[65] In January 2011, Nagano returned to professional wrestling, competing for the new World Wonder Ring Stardom promotion.
[67] However, after only a handful of appearances, which included her losing to Yoko Bito in a World of Stardom Championship tournament semifinal match on July 24, 2011, Nagano once again went inactive to concentrate on her career with Jewels.