World Wonder Ring Stardom (2011–2025) Early years (2011–2017) Iwatani was part of
World Wonder Ring Stardom's first class of trainees. which became one of Stardom's most popular acts. Despite her popularity, Iwatani was the last of the class one trainees to obtain a win in a professional wrestling ring. In June, she was defeated by Eri Susa, the other winless Stardom trainee, and subsequently became known as Stardom's weakest wrestler. Following Hoshiki's retirement from professional wrestling in June 2012, Iwatani began teaming with Io Shirai under the team name Thunder Rock. Iwatani also became part of a stable named Tawashis with
Hiroyo Matsumoto and
Miho Wakizawa. The three went on to win the
Artist of Stardom Championship on December 29, 2013, by defeating
Alpha Female, Female Predator Amazon and
Kyoko Kimura. On July 27, 2014, Iwatani won her first singles title, when she defeated her teammate Miho Wakizawa for the
vacant Wonder of Stardom Championship. After a record-setting eight-month reign, Tawashis lost the Artist of Stardom Championship to Hatsuhinode Kamen,
Kaori Yoneyama &
Tsubasa Kuragaki on August 10, 2014. In October and November, Thunder Rock participated in the
2014 Goddesses of Stardom Tag League. They reached the finals, where they were defeated by
Kairi Hojo and
Nanae Takahashi. On January 18, 2015, Iwatani lost the Wonder of Stardom Championship to
Act Yasukawa. On April 23, 2015, Iwatani won the first annual
Cinderella Tournament, defeating
Koguma in the finals. As a result, Iwatani was granted a shot at Stardom's top title, the
World of Stardom Championship, but was defeated by the defending champion, Kairi Hojo, on May 17. On May 6, Iwatani & Io Shirai, Thunder Rock, defeated
Chelsea & Kairi Hojo to win the vacant
Goddesses of Stardom Championship. On October 11, Iwatani defeated
Rosa Negra to also win the
High Speed Championship. During their tag team title reign, Thunder Rock also won the
2015 Goddesses of Stardom Tag League. On February 28, 2016, Iwatani became a triple champion, when she, Shirai & Kairi Hojo, billed together as "Threedom" (a combination of the words "Three" and "Stardom"), defeated
Evie,
Hiroyo Matsumoto &
Kellie Skater for the Artist of Stardom Championship. In April, Iwatani, along with Hojo & Shirai, traveled to the United States to take part in events held by
Lucha Underground and Vendetta Pro Wrestling. On April 29, Iwatani won her second Cinderella Tournament in a row, defeating Hiroyo Matsumoto in the finals. As a result, Iwatani received another shot at the World of Stardom Championship, but was defeated by Io Shirai on May 15. After setting records for both the longest reign and most successful title defenses, Iwatani & Shirai lost the Goddesses of Stardom Championship to
Kagetsu & Kyoko Kimura in their 11th title defense on June 16. On October 2, Threedom lost the Artist of Stardom Championship to
Hana Kimura, Kagetsu & Kyoko Kimura in their third defense. On November 11, 2016, both Thunder Rock and Threedom were dissolved, when Shirai turned on Iwatani, after the two had lost to Hojo &
Yoko Bito in the finals of the
2016 Goddesses of Stardom Tag League. This led to Iwatani unsuccessfully challenging Shirai for the World of Stardom Championship at Stardom's year-end show on December 22. The following day, the match was named Stardom's 2016 Match of the Year. Reportedly, Iwatani was originally scheduled to win the match and the World of Stardom Championship, but the result was changed after she told Stardom that she wanted to retire from professional wrestling in 2017. After nine successful title defenses, Iwatani lost the High Speed Championship to
Kris Wolf in a three-way match, also involving Kagetsu, on February 23, 2017. On April 30, Iwatani made it to the finals of her third Cinderella Tournament in a row, but was this time defeated by
Toni Storm. With Storm going after the World of Stardom Championship, Iwatani chose to challenge for the Wonder of Stardom Championship. On May 14, Iwatani defeated Kairi Hojo to win the Wonder of Stardom Championship for the second time. Shortly afterwards, it was reported that Iwatani was no longer considering retirement and was being positioned as Stardom's top star in the wake of Io Shirai and Kairi Hojo's departures from the promotion. On June 21, 2017, Iwatani defeated Shirai to win the World of Stardom Championship for the first time in her fifth challenge, becoming the first wrestler to simultaneously hold the World and Wonder of Stardom Championships. Afterwards, Iwatani started defending both the World and Wonder of Stardom Championships in separate title matches. On September 23, Iwatani lost the Wonder of Stardom Championship to Yoko Bito in her third defense. The title change was unplanned as the match had to be stopped after only two minutes due to Iwatani legitimately dislocating her elbow, forcing referee Daichi Murayama to award the title to Storm. Iwatani returned to the ring on December 10 to take part in Yoko Bito's final match in
Shin-Kiba 1st Ring.
Stars leadership (2018–2021) Since her return, Iwatani became the leader of a new unit named "
Stars" (initially Stardom's Army). On February 18, 2018, Iwatani &
Tam Nakano challenged
Oedo Tai (
Hana Kimura &
Kagetsu) for the
Goddesses of Stardom Championship but were unsuccessful. On April 1, Iwatani tried to capture again the
World of Stardom Championship from
Toni Storm after Iwatani was injured in their last match, but was unsuccessful. On June 3, Iwatani, along with
Saki Kashima, defeated Hana Kimura & Kagetsu to win the Goddesses of Stardom Championship. On September 24, Iwatani won the 2018
5 Star Grand Prix after defeating
Utami Hayashishita in the finals. On September 30, at the afternoon show of
5★Star Grand Champion Carnival, Iwatani won the
Artist of Stardom Championship with Kashima & Nakano after defeating J.A.N. (
Jungle Kyona,
Kaori Yoneyama &
Natsuko Tora), however, Iwatani & Kashima lost the Goddesses of Stardom Championship to Kyona & Tora during the evening show. On December 15, Iwatani tore her
MCL in an Artist of Stardom Championship defense against
Queen's Quest (
Konami,
Momo Watanabe and Utami Hayashishita). She wrestled in one more match on December 16 before taking a one month break to recover. In April 2019, Iwatani took another month long break to recover from her knee injury. Stars held the title until July 20, when they lost the championship to Andras Miyagi,
Kagetsu &
Sumire Natsu. On November 4, 2019, Iwatani defeated
Bea Priestley to win the
World of Stardom Championship for the second time. At
Stardom Cinderella Tournament 2020, Iwatani wrestled
Hana Kimura into a time-limit draw during the first-round matches from March 24. At
Stardom Yokohama Cinderella 2020 on October 3, 2020, she successfully defended the
World of Stardom Championship against
Syuri. On November 15, 2020, Iwatani lost the World Championship to
Utami Hayashishita, ending her reign at 377 days. At
Stardom Osaka Dream Cinderella 2020 on December 20, Iwatani teamed up with Stars stablemates
Starlight Kid &
Gokigen Death and unsuccessfully challenged the then sub-unit of Stars,
Cosmic Angels (
Mina Shirakawa,
Tam Nakano &
Unagi Sayaka) for the
Artist of Stardom Championship. After they retained the title, Sayaka, Nakano & Shirakawa announced that they would split up from Stars to act as an independent unit. Iwatani had competed in the
2021 Cinderella Tournament, making it into the quarterfinals from May 14 where she fell short to Himeka. Iwatani teamed up with
Koguma at
Yokohama Dream Cinderella 2021 in Summer on July 4, 2021, where they unsuccessfully challenged Syuri &
Giulia for the
Goddesses of Stardom Championship. At
Stardom 5 Star Grand Prix 2021, Iwatani fought in the "Red Stars" block and scored a total of eleven points. At
Stardom 10th Anniversary Grand Final Osaka Dream Cinderella on October 9, 2021, she unsuccessfully challenged
Tam Nakano for the
Wonder of Stardom Championship as the match went into a time-limit draw. At the
2021 Goddesses of Stardom Tag League, Iwatani teamed up with
Rin Kadokura as "Blue MaRine" and fought in the "Blue Goddess" block where thet scored a total of seven points. At
Osaka Super Wars from December 18, Iwatani teamed up with Hazuki & Koguma and took part in a
¥10 Million Unit Tournament which was also contested for the
Artist of Stardom Championship by first defeating Cosmic Angels (Tam Nakano, Mina Shirakawa &
Unagi Sayaka) in the semi-finals, and eventually falling short to the champions
MaiHimePoi (Maika, Natsupoi & Himeka) in the finals on the same night as a result of a
Six-Woman Tag Team ladder match.
IWGP Women's Champion and departure (2022–2025) At
Stardom Nagoya Supreme Fight on January 29, 2022, Iwatani went into a
time-limit draw against
Giulia in a
World of Stardom Championship #1 Contender's Match. On the first night of the
Stardom World Climax 2022 from March 26, Iwatani teamed up with
Kairi to defeat Tam Nakano &
Unagi Sayaka. On the second night from March 27, she unsuccessfully challenged
Syuri for the World of Stardom Championship. At the
Stardom Cinderella Tournament 2022, she made it to the second round matches from April 10 where she fell short to Saki Kashima. At
Stardom Golden Week Fight Tour on May 5, 2022, Iwatani defeated
Thekla to win the
SWA World Championship. She officially became the second woman to win all the eligible titles in Stardom after Io Shirai, thus becoming the second ever "grand slam champion". At
Stardom Flashing Champions on May 28, 2022, she successfully defended the SWA title against Fukigen Death. At
Stardom Fight in the Top on June 26, 2022, Iwatani teamed up with
Hazuki &
Koguma and defeated Queen's Quest's Utami Hayashishita,
Saya Kamitani &
AZM in one of Stardom's first
steel cage matches. At the
Stardom 5 Star Grand Prix 2022, Iwatani fought in the "Blue Stars" block where she scored a total of fifteen points. On August 27, 2022, Iwatani became a participant in a tournament to become the inaugural
IWGP Women's Champion. In the first round of the tournament, she defeated Odeo Tai's Momo Watanabe on October 22. At Hiroshima Goddess Festival on November 3, 2022, she defeated
Alpha Female to retain the SWA World Championship. On November 3, Iwatani vacated the SWA World Championship in order to focus on the
IWGP Women's Championship, as she was announced as a participant to crown its inaugural champion. Iwatani reached to the finals which took part on November 20 at
Historic X-Over, where she lost to
Kairi. On April 8, 2023, after the IWGP Women's Champion
Mercedes Moné retained the title against
AZM and
Hazuki in a
three-way match, Iwatani challenged Moné for the title at
Stardom All Star Grand Queendom, which Moné accepted, and slapped Iwatani across the face before leaving the ring. Iwatani defeated Moné at Stardom All Star Grand Queendom to become the new IWGP Women's Champion. On August 13, during
Stardom x Stardom: Osaka Summer Team, Iwatani had her first successful title defense against
Utami Hayashishita. On January 4, 2024, at
Ittenyon Stardom Gate, Iwatani defeated Syuri to retain the IWGP Women's Championship in the main event. She would also successfully defend the title against
Mina Shirakawa,
Sareee,
Tsukasa Fujimoto,
Toni Storm and
Momo Watanabe throughout 2024. During the
5 Star Grand Prix 2024, Iwatani would win her block, advancing to the quarterfinals where she defeated
Natsupoi, but would lose to
Maika in the semifinals. On April 27, 2025, at
All Star Grand Queendom 2025, Iwatani lost the IWGP Women's Championship to Syuri, ending her reign at 735 days. On the following day, Iwatani announced her departure from Stardom.
Ring of Honor (2017–2019) On December 15, Iwatani made her debut for American promotion
Ring of Honor (ROH), when she was announced as part of a tournament to crown the inaugural
Women of Honor Champion. At Bound By Honor, Iwatani challenged champion
Kelly Klein to a title match, in which she defeated Klein for the title. Iwatani successfully defended the title twice before losing the title back to Klein at the
G1 Supercard on April 6, 2019.
New Japan Pro-Wrestling (2020–2025) On January 4, 2020, Iwatani along with
Arisa Hoshiki,
Giulia and
Hana Kimura made their debut in
New Japan Pro-Wrestling at
Wrestle Kingdom 14 in
Tokyo Dome in a special
Stardom tag team exhibition match. Iwatani continued to work in these kinds of matches, making her next appearance at
Wrestle Kingdom 15 on January 5, 2021, where she teamed up with
Tam Nakano and fell short to
Donna Del Mondo's Syuri and Giulia. At
Wrestle Kingdom 16 on January 5, 2022, she teamed up with Starlight Kid and fell short to Tam Nakano and Saya Kamitani. On October 28, 2022, at
Rumble on 44th Street, Iwatani successfully defended the
SWA World Championship against
KiLynn King, being the first to defend a Stardom title in NJPW. On January 4, 2025, at
Wrestle Kingdom 19, Iwatani successfully defended the
IWGP Women's Championship against
AZM.
Dream Star Fighting Marigold (2025–present) On May 1, 2025, it was announced that Iwatani has signed with
Dream Star Fighting Marigold at a press conference. On May 4 at Rising Spirit, Iwatani made her debut for the promotion, defeating
Nanae Takahashi. On May 24, Iwatani defeated
Victoria Yuzuki to win the
Marigold Super Fly Championship at
Shine Forever. On October 26, 2025, Iwatani faced her former Stardom rival and partner
IYO SKY (formerly Io Shirai) in the main event of
Grand Destiny, in a losing effort.
Pro Wrestling Noah (2025–present) On May 26, 2025, Iwatani made her
Pro Wrestling Noah debut as she teamed up with the
GHC Women's Champion Kouki Amarei to defeat
Great Sakuya and
Sadie Gibbs. On January 3, 2026, Iwatani defeated
Takumi Iroha to win the
GHC Women's Championship at
First Dream. This made Iwatani the first woman to win both of the IWGP and GHC Women's Championships. On January 24, Iwatani would make her first successful defense against
Utami Hayashishita. == Other media ==