As a young woman, Sakai practiced judo. From 1995 to 1997, she halted her practice of judo to work with senior citizens at the Kasugamachi Care Center in Kanazawa, Ishikawa.
Sakai became involved in wrestling when her friend and fellow judo practitioner, Megumi Yabushita, invited her to join the wrestling sport. Sakai trained under Jaguar Yokota,[2] and made her debut on April 20, 1997 with the Yoshimoto Ladies Pro Wrestling promotion, facing Yabushita in the Korakuen HallinTokyo. She went on to form a tag team with Yabushita named Yabusaka (ヤブサカ).
Later in 1997, Sakai began wrestling for Yokota's JDStar promotion, where she won both the JDStar Junior Championship and the JDStar Queen of the Ring Championship. She also won the Women's Championship of the affiliated American Wrestling Federation and the Tag Team Championship of the affiliated Trans-World Wrestling Federation. In 1999, she suffered a broken leg while wrestling Lioness Asuka. While rehabilitating, Sakai became enamored of American professional wrestling, and resolved to one day wrestle in the United States.
While in Japan, Sakai faced several prominent male Japanese wrestlers, including Dick Togo, The Great Sasuke and Jinsei Shinzaki. She furthered her training under Bison Kimura, Cooga and Lioness Asuka.
Sakai wrestled her first match in the United States in 2002. In May 2002, she began a three-month tour of the US, where she feuded with Mercedes MartinezinNew England Championship Wrestling.[3] While in the promotion, she and Martinez traded the New England Championship Wrestling North American Women's Championship, but Sakai was champion when she returned to Japan.[3] In 2003, she left JDStar and relocated to the United States.
On April 17, 2005, Sakai organised "WE LOVE SABU", a pair of shows held at the Differ Ariake Arena in Tokyo. "WE LOVE SABU" was organised in support of Terry "Sabu" Brunk, an American wrestler who had been afflicted with a serious virus in the summer of 2004, with the proceeds of the show going towards paying Sabu's medical bills. The show featured Frontier Martial-Arts Wrestling alumni such as Masato Tanaka and Extreme Championship Wrestling alumni such as The Sandman. Sabu eventually made a complete recovery, returning to the ring on May 21, 2005.
In 2009, Sakai began training with Brazilian jiu-jitsu black belt Bill Scott. She currently holds a blue belt.
In 2012, Sakai joined Kurt Pellegrino's Mixed Martial Arts Academy in Belmar, NJ to better her BJJ and pursue her MMA career.
On August 9, 2019, Sakai defeated PCW Ultra Woman’s Champion Tessa Blanchard for the title.
Sakai first appeared in Ring of Honor (ROH) in June 2002 and defeated Simply Luscious in the very first women's match on an ROH card. She returned in December 2003 and January 2004, defeating Alison Danger and losing to Alexis Laree and April Hunter. She returned to ROH on August 20, 2005, losing to LaceyatDo or Die 5.
Re-launched of Women of Honor division (2014–2017)
Sakai returned to ROH in 2014 and been performing regularly for ROH since 2015 for its Women of Honor division. On September 26, 2015, Sakai faced Veda Scott in a losing effort as part of "Women of Honor Wednesday" program.[5][6] Sakai made her televised debut on the June 26, 2016, episode of ROH TV, where Sakai alongside Mary Dobson and Thunderkitty faced the team of Allysin Kay, Amber Gallows and Scott in a losing effort.[7]
On January 26, 2019, she received her first Women of Honor World Championship match since losing the title, when she challenged Klein, but was unsuccessful.[13] On January 11, 2020, at the Saturday Night at Center Stage, Sakai teamed with Nicole Savoy when they faced The Allure (Angelina Love and Mandy Leon) in a losing effort.[14] After the match, Sakai attacked Savoy out of frustration, turning heel in the process.[14] The following day, Sakai defeated Savoy in their second encounter against each other.[15]
With ROH returning after the COVID-19 pandemic, Sakai made had her first match over a year on May 5, 2021, where she defeated Vita VonStarr, working as a face again.[16][17] On July 7, Sakai received a "Ticket to Gold" to compete at a tournament to crown the inaugural ROH Women's World Champion.[18] On July 30, Sakai lost to Rok-C at the first round of the tournament.[19]
After her loss to Rok-C in the ROH Women's World title tournament and the company ROH being sold to Tony Khan she has not been seen in Ring of Honor.
Sakai made her mixed martial arts debut on October 14, 2006, fighting American kickboxerAmy Davis in a bout promoted by Tom Supnet of the "Primal Tribe Fighting Club" as part of the Xtreme Fight Series II event. The bout ended in a no contest at the end of the first three-minute long round after Davis suffered an arm injury and was unable to continue as a result of an armbar applied by Sakai.