Independent circuit (2017–2020) As a student, Kaischauri was highly active in
Vienna's
DIY and
punk scene, She also frequently visited the
Weberknecht for its underground wrestling matches, which were held in the basement by Wrestling School Austria (WSA). Kaischauri trained at WSA in Vienna under Gerhard Hradil, one of many professional wrestlers who used the
Humungus character, and later recounted creating her signature "
spider-like moves" in a "basement
dojo" in
Leopoldstadt. she made her
professional wrestling debut on 18 June 2017, for the Vienna's chapter of World Underground Wrestling (WUW), a Japan-based federation of independent promotions from around the world. For most of the following year, Thekla performed in
Vienna's underground wrestling scene, which lacked many of the rules and conventions of mainstream professional wrestling, such as an enclosed ring and time limits. Kaischauri fondly recalled the city's wrestling scene as "loud, chaotic, and cheeky", and described "
Viennese audiences" as "the best". Thekla's in-ring debut took place on 21 April 2018 at IPW Germany Eishaus Explosion 2, an event promoted by Independent Pro Wrestling (IPW) Germany in
Lübeck. On 8 July 2018, she returned to Weberknecht to wrestle in the main event of
WUW Summerfest, failing to take the WUW Austria Women's Championship in a Triple Threat Submission match. Thekla would perform only sporadically in her native Austria, mostly for WUW and Rings of Europe (RoE) in Vienna, as her career increasingly shifted towards
Japan.
Transition to Japan (2018) Through WSA's membership in the Japan-based WUW, and Hradil's professional ties to the Japanese wrestling scene, Kaischauri began performing in the Japanese independent circuit in late 2017. Over the next two years, she divided her time between Vienna and Japan, with the vast majority of her appearances in the latter. In winter 2020, following a six-week tour in Japan, she opted to remain in the country in the wake of the
COVID-19 lockdowns, seeing an opportunity to continue advancing her wrestling career in the Japanese market.
Gleat,
Seadlinnng, and
World Woman Pro-Wrestling Diana. Kaischauri later described adjusting to Japanese professional wrestling, which differed significantly from the Viennese underground scene: "In the cellar of the
Weberknecht it is hard, damp, and dirty. You fight on a small stage on 5 cm thick mats, which can be painful. But it's raw and awesome, the audience is fully involved and very close to you. The Japanese, on the other hand, are much quieter and more distant, especially during the
Corona period. It was often really quiet as a mouse during fights, because clapping and screaming were forbidden. So you're fighting in front of an audience that makes 'Yikes!' to the maximum – but when that happens, then you know: 'now I've got it.'" She spent most of the summer performing at Ice Ribbon shows in Japan before briefly returning to Austria in September, where she later won her first championship title, the World Underground Wrestling (WUW) Women's Championship, on 15 December 2019 at the
Weberknecht. Thekla returned to Ice Ribbon in 2020 and spent most of the year wrestling in their events; her tenure was focused on defending the WUW Women’s Championship, which she briefly lost to
Cherry in July before reclaiming it the following month. Thekla successfully held the title for the rest of the year, traveling to Austria in September to perform in a few shows for WUW and ROE through October. She returned to Japan in late 2020 and opted to settle in the country during COVID-19 lockdown. Due to the subsequent stoppage of live shows, Thekla trained at Ice Ribbon's dojo on the outskirts of Tokyo; she described the period as "lonely" but "extremely focused" and "the basis for the success I have now." Her 2020 run with Ice Ribbon was highlighted for noteworthy matches against
Risa Sera,
Suzu Suzuki, and
Maya Yukihi.''' Behind the scenes, she began receiving more wrestling training from Haruka and
Mio Shirai. On 21 April 2021, Thekla was likewise thwarted by Risa Sera in a title match for the
FantastICE Championship. On 3 May, at the promotion's Yokohama Ribbon show, Thekla captured the Triangle Ribbon Championship title after defeating
Ibuki Hoshi and defending champion
Matsuya Uno in a three-way contest, becoming the 40th Triangle Ribbon Champion. On 13 November 2021, Thekla lost the WUW Women's Championship to
Akane Fujita, having had the second longest single reign in the title's history as of February 2025, at 441 days; her combined reign of 658 days likewise remains the second longest. The match against Fujita would be her last appearance for Ice Ribbon, where she was described as a "big hit" for her distinctively aggressive persona and fighting style, which included engaging in "psychological warfare" against opponents on social media. On 25 December,
Giulia announced that both masked wrestlers would join her
Donna Del Mondo (DDM) stable at the beginning of 2022. On 3 January 2022, Thekla and Mirai were unveiled as the masked assailants and teamed up with Giulia to defeat
Cosmic Angels (
Tam Nakano,
Unagi Sayaka and
Mai Sakurai). DDM would come to enjoy "unprecedented dominance" of the Stardom promotion, as it was now composed of "seven members who are all legitimate contenders for the World and Wonder of Stardom Championships". At
Stardom Nagoya Supreme Fight on 29 January 2022, Thekla defeated
Mina Shirakawa for the vacant
SWA World Championship, earning her first title at the promotion. She lost the championship on 5 May to
Mayu Iwatani during the
Golden Week Fight Tour. At
Flashing Champions on 28 May, Thekla unsuccessfully challenged
AZM for the
High Speed Championship. Thekla was announced as one of the
2022 5 Star Grand Prix participants, to compete in the Red Stars Block, but was unable to take part in the tournament due to injuries. She would ultimately take part in the
2024 edition of the event, instead performing in the Blue Stars Block, for which she would receive the
5★Star GP Award for her match against
Suzu Suzuki. In February 2022, roughly a month after her debut at Stardom, Thekla was described as one of the promotion's "10 best wrestlers" by
The Sportster, which cited her bout against Shirakawa and subsequent winning of the SWA World Championship in her first attempt; the same publication later identified her as one of five wrestlers at Stardom who would "thrive" at WWE, the largest American promotion. In October 2022, Thekla was inaugurally listed among the top 150 female wrestlers in the ''
PWI Women's 150,'' ranking No. 69; Thekla would later be named alongside Giulia and Sakurai as forming one of PWI's top 100 tag teams of 2023, ranking No. 17. In November 2023, Thekla made her first major appearance outside Japan since January 2021, performing in matches in Singapore as part of the three-day Bushiroad Expo Asia 2023, which was co-produced by Stardom and Singaporean promotion Grapplemax. At
New Years Stars 2024 on 3 January 2024, the Baribari Bombers participated in the
2024 Triangle Derby. After reaching the finals and deciding to defend the Artist of Stardom Championship, they lost the match and titles to
Abarenbo GE. The next day, just before Stardom's main event at NJPW's
January 4 Tokyo Dome Show, Thekla and Mai Sakurai joined Giulia as the latter announced the dissolution of the Donna del Mondo faction. Kaischauri stated she would temporarily step away from the promotion and focus on artistic projects. She subsequently appeared at Stardom Nighter in Korakuen II on 23 July alongside her new Odeo Tai stablemate
Momo Watanabe, with whom she successfully won the Goddesses of Stardom Championship by defeating
God's Eye members
Syuri and
Konami. Five days later, during the
Stardom Sapporo World Rendezvous, Tora, surrounded by
Saya Kamitani and the members of Oedo Tai, Thekla included, declared that Oedo Tai was dissolved and the assembled stable would be known by the newly created unit,
H.A.T.E.. Thekla was a main contender at the
Historic X-Over II pay-per-view
crossover event between Stardom and its parent promotion
New Japan Pro-Wrestling, which was broadcast live on 17 November 2024 from the
EDION Arena in
Osaka. She also wrestled at the fourth annual
Stardom Dream Queendom 2024 on 29 December, where she and fellow H.A.T.E. stablemate Momo Watanabe lost their Goddesses of Stardom Championship titles against
Hanan and
Saya Iida of the
Stars faction. At
Stardom All Star Grand Queendom 2025, Thekla was defeated by
Sayaka Kurara. Due to the stipulation, Thekla would have had to join Kurara in Cosmic Angels, but instead she attacked Stardom president Taro Okada, who (
kayfabe) fired her, writing her off and officially ending her four-year tenure with the promotion.
All Elite Wrestling (2025–present) Thekla made her
All Elite Wrestling (AEW) debut on 28 May 2025 episode of
Dynamite, where she attacked
Jamie Hayter. On 4 June at
Collision: Fyter Fest, Thekla made her in-ring debut, defeating
Lady Frost. On 12 July at
All In, Thekla participated in the women's Casino Gauntlet match, but failed to win. On the following episode of
Dynamite, Thekla aligned herself with
Julia Hart and
Skye Blue after the duo helped her win a $100K four-way match. The trio would go by the name of "Triangle of Madness". At
All Out on September 20, Thekla competed in a four-way match for the
AEW Women's World Championship, but failed to win. On October 18 at
WrestleDream, Thekla was defeated by Jamie Hayter, suffering her first singles loss in AEW. On November 12 at
Blood & Guts, Triangle of Madness competed in the first ever women's
Blood and Guts match, where their team was victorious. On the January 28, 2026 epiosde of
Dynamite, Thekla unsuccessfully challenged
Kris Statlander for the Women's World Championship. On the February 11 episode of
Dynamite, Thekla defeated Statlander in a
strap match to become the AEW Women's World Champion, marking her first world championship in her career. At
Revolution on March 15, Thekla retained her title against Statlander in a
two out of three falls match, winning 2-1. On April 12 at
Dynasty, Thekla successfully defended her title against Jamie Hayter. == Professional wrestling style and persona ==