World Wonder Ring Stardom (2010–2013) On September 7, 2010, Aikawa, then known primarily as a
gravure idol, announced that she was transitioning to
professional wrestling, having begun training the previous May under retired professional wrestler,
mixed martial artist and model
Fuka Kakimoto. Aikawa, with a background in
classical ballet and
taekwondo, had first become interested in professional wrestling, after seeing
All Japan Pro Wrestling's 2008
Champion Carnival tournament. After six months of training under Fuka and
Nosawa Rongai, After a fourteen-minute beatdown, Takahashi pinned Aikawa for the win and afterwards declared that since her opponent, now with her left eye swollen shut and with a severely bruised face and chest, had withstood the punishment, she had "
paid her dues" and was ready to become a true professional wrestler. On January 23, 2011, Aikawa made her debut for Stardom at the promotion's first event, being pinned by Takahashi in a
tag team match, where she and
Natsuki☆Taiyo faced Takahashi and Iris. The second
Yuzupon Matsuri event took place on February 6 and saw Aikawa defeat veteran
Yumiko Hotta in the main event for the first win in her career. Six days later, Aikawa took her first win in Stardom, defeating Eri Susa. On May 15, Aikawa wrestled
Ayumi Kurihara to a twenty-minute time limit draw in the main event of the third
Yuzupon Matsuri. On June 12, Aikawa formed the tag team BY Hou ("BY Cannon", a name inspired by
Antonio Inoki's and
Giant Baba's old BI Hou tag team) with
Yoko Bito, with the two defeating
Mayu Iwatani and Nanae Takahashi in their first match together. Later that same day, Aikawa made an appearance for
DDT Pro-Wrestling as a member of the TKG48
stable, wrestling in a fifteen-person
Ironman Heavymetalweight Championship battle royal, from which she was eliminated by
Emi Sakura. On August 14, BY Hou's win streak came to an end when they were defeated by Nanae Takahashi and the debuting
Io Shirai, who pinned Aikawa for the win and then challenged her for the Wonder of Stardom Championship. The fourth
Yuzupon Matsuri was held on August 21 and saw Aikawa defeat
Dump Matsumoto twice, first via pinfall and then via countout. On September 25, Aikawa defended the Wonder of Stardom Championship for the first time, defeating Io Shirai. Later in October, Aikawa and Bito entered the Goddesses of Stardom Tag League tournament, which was used to determine the inaugural
Goddesses of Stardom Champions. In their opening match, BY Hou avenged their earlier loss to Takahashi and Shirai, with Aikawa submitting Shirai for the win, taking advantage of the arm she had injured in their Wonder of Stardom Championship match. After defeating Arisa Hoshiki and Mayu Iwatani, and losing to Eri Susa and Yuu Yamagata, Aikawa and Bito lost their final round robin match to Natsuki☆Taiyo and Yoshiko on November 27. On December 11, Aikawa made an appearance for All Japan Pro Wrestling, the promotion which had first inspired her to become a professional wrestler, teaming with fellow cast members of the
Welcome to the El-Palacio television series,
Keiji Mutoh and
Rina Takeda, in a six-person tag team match, where they defeated
Kaz Hayashi, Nanae Takahashi and Natsuki☆Taiyo. Three days later, the
Tokyo Sports magazine awarded Aikawa the 2011
Joshi Puroresu Grand Prize, naming her the
joshi wrestler of the year, ahead of
Kana,
Meiko Satomura and
Mayumi Ozaki. On December 23, Aikawa made her second successful defense of the Wonder of Stardom Championship, defeating Arisa Hoshiki. In February,
Kairi Hojo and Saki Kashima joined Aikawa and Bito to form a stable named Zenryoku Joshi (Full Power Girls) On April 8, Aikawa promoted the sixth
Yuzupon Matsuri in her hometown of
Niihama, Ehime, teaming with Kairi Hojo to defeat Nanae Takahashi and Yuuri Haruka in the main event of the show. On April 24, Aikawa made her debut for
Pro Wrestling Zero1, defeating the debuting
Yuhi. On May 3, Aikawa was scheduled to defend the Wonder of Stardom Championship against her tag team partner Yoko Bito, but the match had to be postponed, after Aikawa suffered a hip injury. Aikawa returned to the ring at a Stardom event on May 20, during which Zero1's Yuhi joined the promotion full-time, affiliating herself with the Zenryoku Joshi stable. On August 18, Aikawa returned to DDT Pro-Wrestling to take part in the promotion's
15th anniversary event in
Nippon Budokan. Aikawa wrestled in a thirteen-person battle royal for the Ironman Heavymetalweight Championship, from which she was the sixth person eliminated by
Yoshiaki Fujiwara, who went on to win the entire match. Later that same event, Aikawa took part in a "Handicap Rumble match", acting as one of Sanshiro Takagi's equalizer's in his match with
Minoru Suzuki. Suzuki eventually got rid of Aikawa with an
open-hand slap, before pinning Takagi for the win. The following day, Aikawa entered the
2012 5Star Grand Prix, suffering only the second singles loss of her career in her opening match against Kawakatsu Plus One member
Act Yasukawa. Aikawa, however, quickly bounced back from the loss, continuing her tournament by defeating Io Shirai on August 26 and
World of Stardom Champion Nanae Takahashi on September 17. On October 2, Aikawa and Bito were stripped of the Goddesses of Stardom Championship, after Bito had been sidelined with a
cervical hernia following her August Wonder of Stardom Championship match against Aikawa. The injury eventually led to Bito retiring from professional wrestling altogether. On October 14, Aikawa avenged her loss against Act Yasukawa by defeating her in a rematch for the Wonder of Stardom Championship. On October 27, Aikawa entered the 2012 Goddesses of Stardom Tag League, teaming with Zenryoku Joshi stablemate Yuhi. In their opening round-robin match, the two defeated Eri Susa and Nozomi. On November 11, Aikawa and Yuhi, now billed collectively as "Y Dash", continued their tournament with a win over Thunder Rock (Io Shirai and Mayu Iwatani). On November 25, Aikawa and Yuhi were defeated in their final round-robin match by Natsuki☆Taiyo and Yoshiko and, as a result, failed to qualify for the finals of the tournament. On December 10, Aikawa became the first wrestler to win the
Tokyo Sports Joshi Puroresu Grand Prize two times in a row, this time finishing ahead of Meiko Satomura,
Mio Shirai and Kyusei Sakura Hirota in the voting process. On December 18, Aikawa announced that she would retire from professional wrestling on April 29, 2013. She revealed that she had contemplated retirement throughout the year, feeling that professional wrestling had started to get too tough on her near thirty-year-old body, finally deciding to continue until Stardom's big event in
Ryōgoku Kokugikan. On December 24, Aikawa received her shot at the World of Stardom Championship, which she had earned by winning the 5★Star GP, but was unable to dethrone the defending champion, Nanae Takahashi. Afterwards, Aikawa was confronted by her Zenryoku Joshi stablemate Kairi Hojo, who challenged her to a match for the Wonder of Stardom Championship. On January 11, Aikawa and Hojo signed contracts to make the title match official, after which Aikawa announced that it would also serve as the farewell match of the Zenryoku Joshi stable. On January 14, Aikawa defeated Hojo to make her sixth successful defense of the Wonder of Stardom Championship. On January 19, Aikawa wrestled what was billed as her final match in her home prefecture, when she, Hiroyo Matsumoto and Kairi Hojo defeated Eri Susa, Miho Wakizawa and Nanae Takahashi in
Matsuyama, Ehime. On January 27, Aikawa made what was billed as her final return to DDT Pro-Wrestling, teaming with Sanshiro Takagi in a mixed tag team match, where they were defeated by
Danshoku Dino and Yoshiko. However, afterwards she requested one final DDT match, a rematch with Dino and Yoshiko under "
street wrestling" rules. On March 17, Aikawa wrestled her final match at
Tokyo's
Korakuen Hall, losing to veteran wrestler Meiko Satomura. On March 27, Aikawa made her final wrestling appearance outside of Stardom, when she and Sanshiro Takagi defeated Danshoku Dino and Yoshiko, Jaiko Ishikawa and Kota Ibushi, and Michael Nakazawa and Miho Wakizawa in a 53-minute four-way DDT street wrestling match at the
Hanayashiki amusement park. On March 31, Aikawa defeated Act Yasukawa to make her eighth and final successful defense of the Wonder of Stardom Championship. Two days later, Aikawa relinquished the title at a press conference, where the
card was announced for the Ryōgoku Kokugikan event. On April 14, Aikawa took part in a special
gauntlet match, where she faced every wrestler in Stardom as well as surprise entrant Syuri. Twelve of the matches ended in one-minute time limit draws, Aikawa won four of them and suffered her only loss in the final match against Yuhi. Later that same day, Aikawa took part in
Stardom Mask Fiesta, which saw her make her final appearance as Yuzupon Mask, teaming with Iotica, the masked Io Shirai, and
Mexican legend Mil Máscaras in a six-person tag team main event, where they defeated
Black Tiger V, Mayucica and
Passion Seven. On April 29, Aikawa wrestled her retirement match in the main event of
Ryōgoku Cinderella, where she was defeated by Yoshiko.
Sporadic appearances (2014; 2021) On April 26, 2014, Aikawa returned to Stardom during the 2014 Stardom Mask Fiesta. She refereed a match in her Yuzupon Mask character, helping Mini Iotica win a four-way match. On March 3, 2021, Aikawa competed in the
Stardom All Star Rumble at
Stardom All Star Dream Cinderella. She was eliminated by eventual winner
Unagi Sayaka. ==Personal life==