[4] Yabushita graduated from Asahikawa University High School, where she won the judo club competitions in the less than 48 kg division in 1988 and 1989.

[7] In 1996, Yabushita joined Jd' wrestling promotion,[3][4] She made her debut on April 20, 1997 (1997-04-20) in a match against Sumie Sakai at Korakuen Hall.

[8][9] On September 7, 1997 (1997-09-07), Yabushita won the Jd' Junior title in Tokyo by winning a round-robin tournament where she defeated Sakai in the final match[10][11] and she would lose it on her first defense against The Bloody on October 22, 1997 (1997-10-22).

[18] When she joined women's wrestling promotion Jd' in 1996, she met Yoko Takahashi, "Japan's First Woman MMA Fighter.

[4] On December 8, 1997 (1997-12-08), Yabushita made her MMA debut against South Korea Ji Hee Yu, defeating her with an armbar submission at 2:51 of the first round at Central Martial Arts Association event Octagon Challenge, held at the Nagoya Congress Center Century Hall in Nagoya, Aichi, Japan.

[3][4][19][20] Her next bouts and her rose to prominence would take place during Smackgirl's ReMix World Cup 2000 celebrated on December 5, 2000 (2000-12-05) at the Nippon Budokan in Tokyo, Japan.

[21][22] Her spotlight in the tournament was in her match against Russian judoka Svetlana Goundarenko, who had submitted American Erin Toughill, outweighed Yabushita for over 200 lb (91 kg) and had a height advantage of 33 cm (1.08 ft).

Despite these disadvantages, Yabushita was able to control the fight with her quickness and takedown skills, earning a unanimous decision victory and a spot in the final.

[4] Yabushita lost her next bout by technical submission (armbar) against Erin Toughill on May 3, 2001 (2001-05-03) in the ReMix's event Golden Gate 2001.

[23][24] Yabushita's next match was on January 13, 2002 in Jd' wrestling promotion event No holds barred 2002[25] in a MMA rules bout where she was once again defeated by Marloes Coenen, this time by a rear naked choke submission.

[27] On June 4, 2003 (2003-06-04), Yabushita got another victory by submitting Japanese kickboxer Naoko Sakamoto with an armbar at 0:23 of round one in Smackgirl Third Season-IV.

[46][49] After the tournament, Yabushita lost against American Amanda Buckner by submission (guillotine choke) in Smackgirl 2006: Advent of Goddess on February 15, 2006 (2006-02-15).

[54][55][56] Yabushita rebounded back with a majority decision victory against Japanese Mizuho Sato in Shooto's Battle Mix Tokyo 02 on March 30, 2007 (2007-03-30).

[67][68] On November 3, 2007 (2007-11-03), Yabushita was defeated by American fighter Lisa Ellis with a unanimous decision in the event Fatal Femmes Fighting Championship 3: War of the Roses.

[74][75][76] Yabushita had her four straight loss at the hands of Russian fighter Julia Berezikova, who won the match by unanimous decision in the event FightFORCE: Russia vs.

[77][78] Rebounding back from her losing streak, Yabushita scored a unanimous decision victory over Emi Fujino at Japanese event Demolition 080721 on July 21, 2008 (2008-07-21).

[97][98][99] Yabushita faced Sarah Kaufman at Armageddon Fighting Championship 5: Judgment Day on April 2, 2011 (2011-04-02) in Victoria, British Columbia, Canada.

[41] This time, Kim controlled the match and defeated Yabushita by decision (0-3) on May 24, 2006 (2006-05-24) in the Central Martial Arts Association event CMA festival: Japan vs. South Korea total war.

[120] Facing another South Korean, Yabushita was defeated by Seo Hee Ham by unanimous decision in the event CMA Festival 2: Ikuhisa Minowa debut 10 anniversary tournament celebrated on July 23, 2007 (2007-07-23).

[124] Yabushita got her first victory in kickboxing by defeating Kanako Oka by decision (3-0) at Shoot boxing Osaka 2010 Alpinisme -Young Caesar Cup- on January 17, 2010 (2010-01-17).

[125] On March 28, 2010 (2010-03-28), Yabushita was defeated by Kozue "Azuma" Nagashima in a 3-0 decision in the event New Japan Kickboxing Federation: Neppuu Reisan.

[128] On February 27, 2011 (2011-02-27), Yabushita faced Seo Hee Ham for a second time at Gladiator 14 KOK Samurai Series.

[4] After some years, Yabushita and Takahashi decided to leave their partnership with SOD and closed their gym at the end of May 2006 (2006-05) and they formed their own team called Tomoe-gumi.

[4] Members of Tomoe-gumi had differences with Fang Gym's policies and Yabushita and Takahashi were forced to disband the team by November 2007 (2007-11) and became freelance.