Iyo Sky
Masami Odate is a Japanese professional wrestler. She is signed to WWE, where she performs on the Raw brand under the ring name Iyo Sky and is one-half of the current WWE Women's Tag Team Champions with Rhea Ripley in their first reign as a team; it is Sky's third individual reign. She is a former Women's Money in the Bank contract holder, former WWE Women's Champion and former Women's World Champion. Known for her athleticism and in-ring ability, she is regarded as one of the best women's wrestlers in the world.
She competed as Io Shirai in WWE's developmental brand NXT, where she was a former NXT Women's Champion and NXT Women's Tag Team Champion with Zoey Stark, and previously in World Wonder Ring Stardom, where she was a two-time World of Stardom Champion. In Stardom, she is also a former two-time Wonder of Stardom Champion, six-time Artist of Stardom Champion, the inaugural SWA World Champion, one-time Goddesses of Stardom Champion, and one-time High Speed Champion, making her the company's first Grand Slam Champion. She was recognized as the "ace" of Stardom, and was the recipient of the 2015, 2016 and 2017 Tokyo Sports Joshi Puroresu Grand Prizes. Her run in Stardom coincided with the rise of her own stable, Queen's Quest, which carried on after Shirai's departure in 2018 until 2024.
Making her debut in March 2007, she spent several years working as a tag team wrestler, teaming with her older sister Mio, with whom she wrestled for various promotions across Japan and Mexico. In June 2010, she and her sister came together with Kana to form the Triple Tails stable, which lasted for 15 months, before Io broke out of the group and embarked on her singles career in Stardom. In April 2013, she won the promotion's top title, the World of Stardom Championship, later holding it twice, with each reign lasting for over a year. She worked for Stardom from 2011 until 2018, when she signed with WWE.
Shirai made her WWE debut at the 2018 Mae Young Classic tournament, where she lost in the finals to Toni Storm. She was later assigned to the NXT brand, where she officially turned heel in 2019, and won her first championship in WWE, the NXT Women's Championship, in June the following year. She made her debut on the main roster at SummerSlam in July 2022 under the new name Iyo Sky and subsequently became a member of Bayley's stable, Damage CTRL. After winning the Money in the Bank contract, she won the WWE Women's Championship at SummerSlam in August 2023, before losing it to Bayley at WrestleMania XL in April 2024. In March 2025, Sky won the Women's World Championship, making her the tenth WWE Women's Triple Crown Champion and the seventh WWE Women's Grand Slam Champion. She also became the first Japanese wrestler, male or female, to ever become Grand Slam Champion in both Japan and the United States.
Professional wrestling career
Team Makehen (2007–2010)
Odate made her professional wrestling debut on March 4, 2007, alongside her older sister, with the two adopting the ring names Io and Mio Shirai, respectively. In their debut match, the Io sisters teamed with Toshie Uematsu to face the trio of Erika Ura, Nozomi Takesako and Yuri Urai. At the time of her debut, Io was only 16 years old, working part-time while attending high school. After graduating, she started working full-time as a professional wrestler. Starting their careers as freelancers, the Shirai sisters represented Team Makehen, a stable made up of wrestlers trained by Tomohiko Hashimoto, in several independent promotions during their first year in the business, including Ibuki, Pro Wrestling Wave, JWP Joshi Puroresu, and Sendai Girls' Pro Wrestling.On October 19, 2008, Shirai and Mio debuted for one of Japan's largest professional wrestling promotions, All Japan Pro Wrestling, defeating the team of Kyoko Kimura and Mikado. From January to March 2009, the Shirais made several appearances for another large promotion not usually known for female wrestling, Pro Wrestling Zero1. On April 29, the Shirai sisters won their first championship by defeating Moeka Haruhi and Tomoka Nakagawa in a tournament final to become the first TLW World Young Women's Tag Team Champions. Despite its name, the championship was owned and promoted by Pro Wrestling Wave. On July 12, Io received her first singles title opportunity, when she unsuccessfully challenged Misaki Ohata for the JWP Junior and Princess of Pro-Wrestling Championships at Ibuki #30. From July to November, the Shirais spent four months working for the Ice Ribbon promotion.
On November 12, 2009, the Shirais entered Pro Wrestling Wave's Captain's Fall Six Person Tag Team Tournament, teaming with Gami, but the trio was defeated in their first round match by Ran Yu-Yu, Ryo Mizunami and Toshie Uematsu. However, the trio earned their way back into the tournament by defeating Misaki Ohata, Moeka Haruhi and Yumi Ohka in a consolation match later that same day. On November 25, the Shirais and Gami first defeated Bullfight Sora, Cherry and Kaoru in the semi-finals and then Ayumi Kurihara, Kana and Shu Shibutani in the finals to win the tournament, with Io, as the captain, scoring the deciding pinfall over Shibutani. On December 23, the Shirais lost the TLW World Young Women's Tag Team Championship to Misaki Ohata and Moeka Haruhi. On May 30, 2010, Io entered the 2010 Catch the Wave tournament. After three wins and one loss, Shirai finished tied at the top of her block, but was eliminated from the tournament on August 10, after being defeated in a tiebreaker match by Ryo Mizunami.
Triple Tails (2010–2011)
On June 19, 2010, the Shirai sisters formed the Triple Tails stable with fellow freelancer Kana, defeating Ayumi Kurihara, Hikaru Shida and Yoshiko Tamura in their first match together at a NEO Japan Ladies Pro Wrestling event. As a result, the Shirais received a shot Kurihara's and Tamura's NEO Tag Team Championship on July 4, but failed to win the titles. On August 1, Io again failed to win the titles, this time with Kana as her partner. Triple Tails returned to its winning ways on August 29, defeating Asami Kawasaki, Shida and Nagisa Nozaki in a six-woman tag team match. On December 19, Triple Tails made its debut as a unit for Pro Wrestling Wave, defeating Cherry, Gami and Tomoka Nakagawa in a six-woman tag team main event.On January 29, 2011, the Shirais made their debuts for Smash, when the Triple Tails stable attacked Yusuke Kodama and Makoto after their matches, with the trio being both times chased out of the ring by Tajiri. On February 13, Triple Tails produced its first own event, where the Shirai sisters wrestled male tag team Momo no Seishun Tag in a losing effort. On February 25, the Shirais made their Smash in-ring debuts at Smash.14, where they teamed with Kana to defeat Ken Ohka, Tajiri and Yoshiaki Yago in an intergender six person tag team match. In March, Triple Tails took part in Osaka Pro Wrestling's Spring Samba Series, going undefeated in six person tag team matches for the duration of the tour. On April 30 at Smash.16, Triple Tails was defeated by Makoto, Serena and Syuri. On May 3 at Smash.17, the Shirai sisters were defeated by Hikaru Shida and Syuri. Triple Tails' second event took place on May 8 and saw Io, Mio and Kana defeat Akino, Kagetsu and Syuri.
On July 23, Triple Tails held a press conference to announce that, following the group's third self-produced event on September 18, Io was leaving the stable in order to pursue a singles career. On August 21, Triple Tails made its debut for Oz Academy, defeating the trio of Ayumi Kurihara, Hiren and Yumi Ohka. On September 14, Triple Tails defeated Cherry, Moeka Haruhi and Shuu Shibutani in the group's final Pro Wrestling Wave appearance. Four days later, Triple Tails defeated Dash Chisako, Ryo Mizunami and Sendai Sachiko at their third self-produced event in the group's final appearance together.
Mexico (2010–2012, 2014, 2015)
In 2010, Shirai traveled to Mexico, where she entered a local wrestling school to undergo further training. On October 14, 2010, Shirai, working under the ring name Viva Kasai, made her debut for International Wrestling Revolution Group at an event in Naucalpan, Mexico, where she teamed with Mini Abismo Negro, Monster Clown and Yuriko to defeat El Hijo de Cien Caras, Mari Apache, Mascarita Divina and Pasión Cristal via disqualification in an eight-person tag team match. In Mexico, both Shirais worked under cat-like masks they would only wear for their entrances in Japan. On October 31, both of the Shirai sisters were brought over to AAA, which had a working relationship with IWRG, and repackaged, with Io adopting the ring name Oyuki and Mio becoming Kaguya. In their first AAA match, Oyuki, Kaguya and Yuriko lost to Cynthia Moreno, Gato Eveready and Mari Apache in a six-person tag team match. During their stay in AAA, Oyuki and Kaguya became associates of the La Legión Extranjera stable. On November 7, Oyuki and Kaguya defeated Faby and Mari Apache and afterwards stole Faby's AAA World Mixed Tag Team Championship and Mari's AAA Reina de Reinas Championship belts. On November 15, the Apaches and Cynthia Moreno defeated Oyuki, Kaguya and Sexy Star. A week later, Oyuki, Kaguya and Jennifer Blake defeated Moreno and the Apaches. This marked Oyuki's and Kaguya's final AAA appearance, which resulted in the storyline with the Apaches being dropped without a conclusion.Shirai, now working without her mask and under the ring name Io Shirai, returned to Mexico on May 15, 2011, at Lucha Fan Fest 4, where she teamed with Nosawa to defeat Chica Tormenta and Mike Segura for the vacant Americas World Mixed Tag Team Championship. In November 2011, Shirai returned to Mexico with Wrestling All-Star Pros for another two-week tour. On November 1, Shirai put her hair on the line in her first Lucha de Apuestas Hair vs. Mask match, a four-way intergender elimination match, where she faced Ángel o Demonio, La Maléfica and Shitara. Eventually, the match came down to Shirai and La Maléfica, ending with Shirai submitting her opponent for the win, forcing her to unmask herself. Shirai and Nosawa defended the Americas World Mixed Tag Team Championship back in Japan on January 3, 2012, defeating Ken Ohka and Mio Shirai at a Union Pro Wrestling event. Shirai returned to Mexico on May 19 to take part in Lucha Expo in Mexico City, where she teamed with Keira to defeat Chica Tormenta and La Vaquerita.
Upon Shirai's return to Japan, she was arrested under suspicion of marijuana smuggling. This resulted in a two-year break from her regular trips to Mexico before Shirai returned to the country on January 27, 2014. Shirai returned to Mexico on May 11 to take part in Toryumon Mexico's DragonMania 9 event, where she, Dark Angel, Kairi Hojo and Mayu Iwatani defeated Ahy Lyyn, Baby Star, Diosa Atenea and Mystique. On May 23, 2015, Shirai returned to Mexico, first taking part in Toryumon Mexico's DragonMania 10 event in Arena México, where she, Diosa Atenea, Mayu Iwatani and Mima Shimoda defeated India Mazahua, India Sioux, Maligna and Xena. Later that same day, Shirai also took part in Lucha Fan Fest 8, where she, Dos Caras and Vanely defeated Atenea, Iwatani and Brazo de Plata.