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Kyōko Saitō

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Kyōko Saitō
齊藤 京子
Half-body image of Saitō at the 2025 Cannes Film Festival, wearing a black-and-white sleeveless dress.
Saitō at the 2025 Cannes Film Festival
Born (1997-09-05) September 5, 1997 (age 29)
Tokyo, Japan
Occupations
  • Actress
  • television presenter
  • singer
Years active2016–present
AgentToho
Musical career
GenreJ-pop
Years active2016−2024; 2026−present
LabelSony
Formerly of
Modeling information
Height155.5 cm (5 ft 1 in)
Hair colorBlack
Eye colorBlack
WebsiteOfficial website Edit this at Wikidata

Kyōko Saitō (Japanese: 齊藤京子, Hepburn: Saitō Kyōko; born September 5, 1997) is a Japanese actress, television presenter, and singer, represented by Toho. She co-hosts the talk show Kyoccorohee on TV Asahi and made her international acting debut as the star of Love on Trial (2025), screened at the 2025 Cannes Film Festival.

Saitō began her career as a founding member of the girl group Hinatazaka46 (formerly Hiragana Keyakizaka46) from 2016 to 2024. She made her acting debut in the group's drama Re:Mind (2017), and has since starred in Muddy Dining Table (2023), Sudden Marriage (2025), and Suspicious Partner (2025); she has also provided the Japanese dub voice for the character April O'Neil since Teenage Mutant Ninja Turtles: Mutant Mayhem (2023). As a singer, she was the lead performer for Hinatazaka46's 2022 single "Tsuki to Hoshi ga Odoru Midnight" and has held solo concerts in 2022 and 2023 in collaboration with MTV Japan. She was also a regular model for the fashion magazine Ar from 2019 to 2024. Her fans are known as the Kyonkois (きょんこいず, Kyonkoizu).

In October 2026, Saitō announced her debut as a solo singer, with her first song released digitally that month and a debut solo concert scheduled for February 2027.

Career

[edit]

2016–2018: Early career with Hiragana Keyakizaka46

[edit]

Saitō had aspired to become a singer since middle school.[1] She attempted and failed multiple singing auditions until she tried out for Hiragana Keyakizaka46, the new subgroup of girl group Keyakizaka46, after she learned that Yui Imaizumi, whom she had met at one of the previous auditions, had joined Keyakizaka46.[2][3] Her musical career began in May 2016 when she passed the auditions and joined the group as a member of the founding "first generation".[4] Her first concert took place on October 28 of the same year at Akasaka Blitz, where she performed Keyakizaka46 songs "Silent Majority" and "Sekai ni wa Ai Shika Nai", as well as Hiragana Keyakizaka46's own "Hiragana Keyaki".[5]

Saitō was the center (lead performer) for the song "Soredemo Aruiteru", released on the 2017 Keyakizaka46 single "Kaze ni Fukarete mo"[6] and the opening song for her and Hiragana Keyakizaka46's drama series debut that year, Re:Mind. Her first solo song, "Igokochiwaruku Otona ni natta" (居心地悪く大人になった; lit. 'Uncomfortably Became an Adult'), was released on Hiragana Keyakizaka46's 2020 debut album Hashiridasu Shunkan.[3] She and Shiho Katō were particularly recognized for their vocal abilities and were often assigned to the front rows of song formations on either side of the center, earning them the nickname "Strongest Symmetry" (最強シンメ, Saikyō Shinme) which remained popular throughout their tenure.[7][8]

Saitō is a ramen enthusiast, inspired by the manga and anime series Ms. Koizumi Loves Ramen Noodles,[9][10] and her catchphrase is "I love ramen, I'm Kyōko Saitō" (ラーメン大好き、齊藤京子です, ramen daisuki, Saitō Kyōko desu).[11] She was featured in a 2018 television special titled after her catchphrase, in which several members take her to their recommended ramen restaurants.[12]

2019–2021: Hinatazaka46 and Kyoccorohee

[edit]

Hiragana Keyakizaka46 was spun off from Keyakizaka46 and rebranded into Hinatazaka46 in February 2019.[13] Saitō was one of five members representing Hinatazaka46 in "Hatsukoi Door", a collaboration song between the AKB48 Group and Sakamichi Series franchises released on the 2019 AKB48 single "Jiwaru Days".[14] In variety shows, she was known for her proficiency in the language game babigo (バビ語), with fellow member Kumi Sasaki serving as "interpreter".[15][16] She also maintained her ramen lover persona, becoming an ambassador for the 2019 Ramen Girls Expo in Shizuoka[17] and appointed "Jjigae Miso Angel" by the ramen chain Hidakaya for her fondness of their Jjigae Miso ramen in 2021.[18]

Saitō's acting career continued with her role as the high school student Wakame Isono (double cast with then-Nogizaka46 member Manatsu Akimoto) in the 2019 stage adaptation of the long-running manga Sazae-san[19] and a supporting role in the Hinatazaka46 drama Dasada (2020). She co-starred in the 2021 television series Borderless, which features selected members of Nogizaka46, Sakurazaka46, and Hinatazaka46 co-starring in a television drama for the first time, and its 2023 sequel Actress.[20][21]

From 2019 to 2024, Saitō was a regular model for the fashion magazine Ar.[22][23] Her solo photobook, titled Totteoki no Koibito (とっておきの恋人; Special Lover), was released by publisher Shufu No Seikatsusha (publisher of Ar) on January 19, 2021, with the concept of "dating at various locations in Tokyo".[24] The initial print run was 115,000 copies, and a total of 40,000 additional copies were reprinted within its release week.[25] The book placed first on the Oricon Weekly Photobook chart with an estimated 84,000 copies sold[26] and was third place with 135,000 copies sold on that year's Annual Photobook chart, which saw the top three ranks dominated by Hinatazaka46 with Nao Kosaka's photobook on first and the group's Hinasatsu Vol. 01 on second.[27]

In June 2020, Saitō announced that her official fandom name would be Kyonkois (きょんこいず, Kyonkoizu), a combination between her nickname Kyonko and "love" (恋, koi).[28][29]

The late-night dance talk show Kyoccorohee (キョコロヒー), co-hosted by Saitō and comedienne Hiccorohee, started airing on TV Asahi on April 1, 2021.[30] Since then, live events based on the show have been held in 2022 at the EX Theater Roppongi[31] and in 2023 at the Tokyo International Forum, Hall A.[32] According to Saitō, the show's appeal lies in having long-winded conversations between two women who are "not on the same wavelength".[31]

2022–2024: Becoming Hinatazaka46 center, expansion of solo works

[edit]

In May 2022, Saitō performed a solo cover of the Hinatazaka46 seventh single "Boku Nanka", which would be released the next month, on the YouTube channel The First Take. The song was rearranged with piano and strings to showcase her voice, and she commented that she projected her own insecurities into her performance.[33][34] She then became the center for the group's eighth single "Tsuki to Hoshi ga Odoru Midnight", announced and performed live for the first time on September 10, 2022, during the "Happy Smile Tour 2022" national tour performance at Aichi Sky Expo.[35][36][37][38] She held two solo concerts with MTV Japan: the broadcast-only 2022 "MTV Live Sessions: Kyoko Saito from Hinatazaka46"[39] and 2023 "MTV Unplugged Presents: Kyoko Saito from Hinatazaka46" at Pia Arena MM.[40] She also performed in collaborations with musicians who won the Daisy Bell Award, an award for music created using voice synthesizer software, in the 2021 and 2023 MTV Video Music Awards Japan.[41][42][43]

In 2023, Saitō appeared in her first solo lead role in the television drama adaptation of the manga Muddy Dining Table (泥濘の食卓, Nukarumi no Shokutaku)[44] and made her voice acting debut as the Japanese dub voice of April O'Neil in Teenage Mutant Ninja Turtles: Mutant Mayhem.[45] The same year, the cup noodle brand CupStar, in whose commercials Hinatazaka46 had previously appeared, released a Hidakaya Jjigae Miso Ramen limited edition product, with Saitō's likeness featured on the lid.[46][47]

Aside from Hinatazaka46, Saitō and Hiccorohee released their debut single under the name Kyoccorohee, "After You!", digitally on January 1, 2024, and as physical media on February 14.[48] The main song, written by Hinatazaka46 producer and lyricist Yasushi Akimoto, was first revealed live on Music Station Superlive 2023 on December 22, 2023.[49] Saitō wrote the lyrics for her solo song on the single.[50] The music video is published on Hinatazaka46's YouTube channel and is the first song on the channel sang by a non-member.[51]

Sign at Yokohama Stadium for Saitō's "graduation" concert
Sign at Yokohama Stadium for Saitō's "graduation" concert
An elaborate off-white dress worn by Saitō in her graduation concert
Dress worn by Saitō in her graduation concert

On January 11, 2024, Saitō announced that she would leave Hinatazaka46 on April 5. Her "graduation" concert was held on the same day at the Yokohama Stadium, which was also the day before Hinatazaka46's 2-day 5th Hinatansai anniversary concert at the same venue.[52][53][54] Her final participation on a Hinatazaka46 music release was for the 11th single, "Kimi wa Honeydew", serving as the center for "Boku ni Tsuzuke" (僕に続け; lit. 'Follow Me'), which was performed by the entire group.[55]

2024–present: Solo career

[edit]

In May 2024, Saitō announced that she had signed with the Toho Entertainment talent agency and intended to further pursue acting.[56] She continued her role as April O'Neil in the Japanese dub of the Tales of the Teenage Mutant Ninja Turtles animated series, which premiered in December.[45]

In 2025, the film Love on Trial (恋愛裁判, Ren'ai Saiban), directed by Koji Fukada with Saitō as lead character Mai, was selected for the Cannes Premiere section at the 2025 Cannes Film Festival. She attended the premiere on May 22, her first appearance at an international film festival.[57][58] Her performance was critically acclaimed; Screendaily noted that she brought an "inherent veracity" to her performance,[59] while Josh Slater-Williams of IndieWire commented that she brought in details that were "palpably drawn from a place of personal resonance" as a former idol herself.[60] The Japan Times remarked that she exuded the "weariness of someone beyond her years", making Mai's personal journey "modestly compelling".[61]

The audition and entertainment information site Deview placed Saitō second on its 2026 Next Breakout Ranking for actresses, released on January 30, 2026, with fellow former Hinatazaka46 member Yūka Kageyama on first place.[62] Following Kyoccorohee's loss of its national network slot, a live show billed "Kyoko Saito × Hiccorohee: A Live Show at Tokyo Dream Park Where They Steel Their Resolve and Finally __" (齊藤京子×ヒコロヒーが東京ドリームパークで腹くくって最後に○○するライブ) was held on May 4 at the SGC Hall Ariake, attended by 3700 audience and featuring multiple guests, including fellow former Hinatazaka46 founding members Kumi Sasaki and Mirei Sasaki, with the "surprise" at the end being them expressing their "gratitude" to the show's audience and crew.[63] The duo also held their first outdoor public recording, "Midsummer Kyoccoro-festival! in Summer Fes" (真夏のキョコロ祭り!in SUMMER FES) on August 3 at the Summer Fes Live Arena (Roppongi Hills Arena), featuring Suzuka Tomita as guest.[64]

In October 2026, her 10th year in the entertainment industry, Saitō announced her solo singing debut under Sony Music.[65] Her first song, "Genki ni Shiteta?" (元気にしてた？; lit. 'How Have You Been?'), would be released digitally on October 21, and her debut concert as a soloist has been scheduled for February 28, 2027 at the Kanadevia Hall, Tokyo.[66]

Filmography

[edit]

Film

[edit]
Year Title Role Notes Ref(s)
2023 Teenage Mutant Ninja Turtles: Mutant Mayhem April O'Neil (Japanese dub) [45]
2025 #Iwilltellyouthetruth An acquaintance of Kiriyama [67]
Love Song Hikari Thai-Japanese film [68]
Love on Trial Mai Yamaoka Lead role [69]
2026 Kyojo: Reunion Maimi [70]
Kyojo: Requiem Maimi [71]

Television series

[edit]
Year Title Role Notes Ref(s)
2017 Re:Mind Kyōko Saitō [72]
2020 Dasada Makoto Ogasawara [73]
2021 Borderless Kiri Katayama [21]
2023 Actress Kiri Katayama [74]
Muddy Dining Table[a] Mia Nejiki Lead role [44]
2024 Renai Senryaku Kaigi Akane Mugita [75]
Doraemon Birthday Special: Nobita and the Greek Cake Legend Bard (voice) [76]
Tales of the Teenage Mutant Ninja Turtles April O'Neil (Japanese dub) [77]
2025 Sudden Marriage[b] Mao Koshiba Lead role [78]
Suspicious Partner[c] Sakura Yamashita Lead role [79]
2026 Surname Confidential[d] Aya Gunji [80][81]
Gate24: The Border Nozomi Endō [82]

Variety show

[edit]
Year Title Notes Ref(s)
2018 Hiragana Keyakizaka46 Ramen Daisuki, Saitō Kyōko Desu [12]
2021–present Kyoccorohee [30]
2026 Another Sky January 24 guest; visited Seoul, South Korea [83]

Web shorts

[edit]
Web short
video icon Buta no Shinju on TikTok
Year Title Role Notes Ref(s)
2026 Buta no Shinju[e] Chika Lead role; produced by winner of the TikTok Toho Film Festival 2024 [84]

Commercials

[edit]
Commercials
video icon Sony Assurance "Spirit of the Car" on X
video icon "Everyone's Yakult" on Instagram
video icon Nurse Senka series on YouTube
video icon "HiruMac" on Instagram
  • Sony Assurance "Spirit of the Car" (2022)[85]
  • Yakult "Everyone's Yakult" (theme song only) (2023)[86]
  • Nurse Senka (2024−2026)[87][88][89]
  • McDonald's Japan "HiruMac" (2026)[90]

Discography

[edit]

Single

[edit]
Music videos
video icon "Genki ni Shiteta?" on YouTube
Singles
Year Title Peak chart

positions

 Notes Ref(s)
JPN

Oricon[91]

2026 "Genki ni Shiteta?" (元気にしてた？; lit. 'How Have You Been?') TBA [65][66]

Hiragana Keyakizaka46/Hinatazaka46

[edit]

During her time with Hiragana Keyakizaka46 and Hinatazaka46, Saitō was assigned to the formation front lines of almost all the title songs in which she took part.[92] Notable appearances include:

  • "Soredemo Aruiteru" (それでも歩いてる; lit. 'Keep Walking Anyway') (2017, released on "Kaze ni Fukarete mo"), center (lead performer), theme song for Re:Mind[93][94]
  • "Igokochiwaruku Otona ni Natta" (居心地悪く大人になった; lit. 'Uncomfortably Became an Adult') (2018, released on Hashiridasu Shunkan), solo song[94]
  • "Tsuki to Hoshi ga Odoru Midnight" (月と星が踊るMidnight; lit. 'The Moon and Stars Dance at Midnight') (2022), center[94]
  • "Kodoku na Toki" (孤独な瞬間(とき); lit. 'Lonely Time') (2022, released on "Tsuki to Hoshi ga Odoru Midnight"), solo song[95]
  • "Boku ni Tsuzuke" (僕に続け; lit. 'Follow Me') (2024, released on "Kimi wa Honeydew"), center[55]

Kyoccorohee

[edit]
  • "After You!" (2024), digital single, debut song[49][51]

Sakamichi AKB

[edit]
  • "Hatsukoi Door" (初恋ドア, Hatsukoi Doa; lit. 'First Love Door') (2019, released on "Jiwaru Days")[14]

Solo concerts

[edit]
  • MTV Live Sessions: Kyoko Saito from Hinatazaka46 (broadcast only, June 5, 2022)[39]
  • MTV Unplugged Presents: Kyoko Saito from Hinatazaka46 (Pia Arena MM, May 21, 2023)[40]

Theater

[edit]
Year Title Role(s) Venue(s) Ref(s)
2018 Ayumi Multiple AiiA 2.5 Theater Tokyo [96][97]
Magia Record Kyoko Sakura Akasaka ACT Theater [98]
2019 Sazae-san Wakame
[19]

Radio

[edit]

Bibliography

[edit]
Title Release date Publisher ISBN
Totteoki no Koibito (とっておきの恋人; lit. 'Special Lover', photobook) January 19, 2021 Shufu to Seikatsu Sha ISBN 978-4391154979

Notes

[edit]
  1. ↑ 泥濘の食卓, Nukarumi no Shokutaku
  2. ↑ いきなり婚, Ikinari Kon
  3. ↑ あやしいパートナー, Ayashii Partner
  4. ↑ 夫婦別姓刑事(でか), Fūfu Bessei Deka
  5. ↑ 豚の真珠; transl. Pearl Before Swine

References

[edit]
  1. ↑ Self-Documentary of Hinatazaka46. Episode 1. February 12, 2020. TBS Television.
  2. ↑ Andō, Daishirō (April 18, 2020), 日向坂46 〜空色の未来へ〜 [Hinatazaka46: Towards the Sky Blue Future] (in Japanese), Magazine Box, pp. 54–59, ISBN 978-4-86640-092-1
  3. 1 2 日向坂46 齊藤京子、お団子ヘアで"アザトカワイイ"表情 豪華12Pグラビアに注目 [Hinatazaka46's Kyoko Saito Shows an "Azatokawaii" Expression with Her Hair in Buns; Attention on the 12-Page Gravure]. Real Sound (in Japanese). November 24, 2020. Archived from the original on August 2, 2022. Retrieved August 2, 2022.
  4. ↑ 「けやき坂46」合格者11人発表 欅坂46が総勢32人に [11 Successful Hiragana Keyakizaka46 Applicants Announced; Keyakizaka46 Grows to 32 Members]. Oricon News (in Japanese). May 11, 2016. Archived from the original on June 25, 2018. Retrieved March 2, 2020.
  5. ↑ けやき坂46、ライブあり寸劇ありの個性全開「ひらがなおもてなし会」 [Hiragana Keyakizaka46 Showcases Its Individuality with Live Performances and Skits at "Hiragana Hospitality Event"]. Music Natalie (in Japanese). October 29, 2016. Archived from the original on October 4, 2023. Retrieved March 2, 2020.
  6. ↑ けやき坂46、1stアルバムはソロ曲に注目？ 佐々木美玲、加藤史帆、齊藤京子の活躍を分析 [Hiragana Keyakizaka46's First Album: Attention on Solo Songs? An Analysis of the Activities of Mirei Sasaki, Shiho Katō, and Kyōko Saitō]. Real Sound (in Japanese). May 31, 2018. Archived from the original on March 2, 2020. Retrieved March 2, 2020.
  7. ↑ "日向坂46加藤史帆＆齊藤京子：ザ・ピーナッツの「恋のバカンス」歌唱 「最強のシンメ！」とファン盛り上がり" [Hinatazaka46's Shiho Katō and Kyōko Saitō Sing The Peanuts' "Koi no Bakansu"; Fans Excitedly Call Them the "Strongest Symmetry!"]. MANTAN Web (in Japanese). December 30, 2020. Retrieved February 19, 2026.
  8. ↑ "日向坂46一期生、齊藤京子へ涙のメッセージ "最強シンメ"加藤史帆も思い溢れる「京子は本当に特別な人」＜全文／齊藤京子卒業コンサート＞ - モデルプレス" [Hinatazaka46 First-Generation Members Send Tearful Messages to Kyōko Saitō; "Strongest Symmetry" Partner Shiho Katō Also Overcome with Emotion, "Kyōko Is Truly a Special Person" <Full Text / Kyōko Saitō Graduation Concert> - Modelpress]. Modelpress (in Japanese). April 8, 2024. Retrieved February 19, 2026.
  9. ↑ @saito_kyoko95 (December 6, 2024). 齊藤が帯コメントを担当させていただいた 新装・秋田書店版 「ラーメン大好き小泉さん」11巻 本日発売です！ 齊藤がラーメン好きになるきっかけとなった作品です☺︎ ぜひチェックしてみてください🍜 [Volume 11 of the newly redesigned Akita Shoten edition of Ms. Koizumi Loves Ramen, for which I wrote the jacket blurb, is on sale today! This is the series that sparked my love for ramen ☺︎ Be sure to check it out 🍜] (Tweet) (in Japanese) – via X (formerly Twitter).
  10. ↑ "実は嫌いだった！？けやき坂46・齊藤京子がラーメン愛を語る【後編】" [Did She Actually Dislike It!? Hiragana Keyakizaka46's Kyōko Saitō Talks About Her Love of Ramen [Part 2]]. Hominis (in Japanese). Retrieved February 8, 2026.
  11. ↑ 横山慧 (December 23, 2019). ラーメン大好き日向坂の個性派 齊藤京子の自己分析 [Hinatazaka's Ramen-Loving Individualist Kyōko Saitō Analyzes Herself] (in Japanese). Nikkan Sports. Archived from the original on January 24, 2020. Retrieved March 2, 2020.
  12. 1 2 『けやき坂46ラーメン大好き！齊藤京子です』CSテレ朝chで4・15放送 [Hiragana Keyakizaka46 I Love Ramen! I'm Kyōko Saitō to Air on CS TV Asahi Channel 1 on April 15]. TV Life (in Japanese). April 2, 2018. Archived from the original on March 2, 2020. Retrieved March 2, 2020.
  13. ↑ "Hiragana Keyaki Changes Name to Hinatazaka46, Debut Single Due in March". Billboard. February 16, 2019. Archived from the original on June 9, 2020. Retrieved January 29, 2021.
  14. 1 2 "3代目"坂道AKB、センターは乃木坂46山下美月 若手ドリームチームのMV公開 ["Third-Generation" Sakamichi AKB: Nogizaka46's Mizuki Yamashita Is Center; Music Video for Young Dream Team Released]. Oricon News (in Japanese). March 1, 2019. Archived from the original on July 24, 2019. Retrieved March 2, 2020.
  15. ↑ 齊藤京子（日向坂46）、"バビ語の母国語化"を画策？ メンバー号泣の『時代』カバーに称賛の声も [Kyōko Saitō (Hinatazaka46) Plots to Make "Babigo" the Native Language? Praise Also for a Cover of "Jidai" That Made Members Cry]. Excite (in Japanese). July 21, 2019. Archived from the original on March 2, 2020. Retrieved March 2, 2020.
  16. ↑ "日向坂・齋藤京子 特技「バビ語」を披露するも…ハリセン春菜らキョトン/デイリースポーツ online" [Hinatazaka's Kyōko Saitō Shows Off Her Special Skill "Babigo", but Haruna Harisen and Others Look Puzzled / Daily Sports Online]. Daily Sports Online (in Japanese). September 13, 2026. Retrieved September 13, 2026.
  17. ↑ 日向坂46齊藤京子、「ラーメン女子博 in 静岡」PR大使に決定「夢のよう」 [Hinatazaka46's Kyōko Saitō Appointed PR Ambassador for "Ramen Girls Expo in Shizuoka": "It's Like a Dream"]. Music Voice (in Japanese). March 13, 2019. Archived from the original on April 6, 2019. Retrieved August 2, 2022.
  18. ↑ 「こちらからお願いした訳でもないのに」日向坂46齊藤京子、チゲ味噌の天使就任でファンが予感したこととは…！？ ["Even Though We Didn't Ask Her Ourselves": What Did Fans Foresee When Hinatazaka46's Kyōko Saitō Was Appointed the "Jjigae Miso Angel"?!]. coconutsjapan.com (in Japanese). February 23, 2021. Archived from the original on April 11, 2024. Retrieved April 23, 2022.
  19. 1 2 乃木坂46秋元真夏・日向坂46齊藤京子：舞台「サザエさん」出演、Wキャストでワカメちゃん [Nogizaka46's Manatsu Akimoto and Hinatazaka46's Kyōko Saitō Appear in Stage Adaptation of "Sazae-san", Double-Cast as Wakame-chan]. okmusic.jp. Archived from the original on November 11, 2021. Retrieved November 11, 2021.
  20. ↑ 乃木坂46、櫻坂46、日向坂46がグループの垣根を超えてドラマ初共演！ 本格ミステリードラマ「ボーダレス」ひかりＴＶとdTVチャンネルで３月より独占配信 [Nogizaka46, Sakurazaka46, and Hinatazaka46 Co-Star in a Drama for the First Time Across Group Boundaries! Full-Fledged Mystery Drama Borderless to Stream Exclusively on Hikari TV and dTV Channel from March]. PR Times. January 29, 2021. Archived from the original on January 29, 2021. Retrieved January 29, 2021.
  21. 1 2 ひかりＴＶオリジナルドラマ「ボーダレス」 – この日を境に、世界が変わった。 [Hikari TV Original Drama Borderless – The World Changed from This Day On]. Hikari TV (in Japanese). Archived from the original on April 19, 2021. Retrieved January 29, 2021.
  22. ↑ 日向坂46齊藤京子「ar」レギュラーモデルに抜てき＜本人コメント＞ [Hinatazaka46's Kyōko Saitō Selected as a Regular Model for ar <Her Comments>]. Modelpress (in Japanese). June 7, 2019. Archived from the original on July 14, 2019. Retrieved March 2, 2020.
  23. ↑ "齊藤 京子" [Kyōko Saitō]. toho-ent.co.jp (in Japanese). Retrieved February 27, 2025.
  24. ↑ 齊藤京子、写真集タイトル＆カバー4種類公開 表紙には直筆文字が採用 [Kyōko Saitō's Photobook Title and Four Covers Revealed; Handwritten Lettering Used on the Covers]. Oricon News. Archived from the original on November 27, 2020. Retrieved March 11, 2023.
  25. ↑ 日向坂46・齊藤京子、1st写真集が発売直後に3万部の重版 累計発行部数15万5000部に [Hinatazaka46's Kyōko Saitō Gets 30,000 Additional Copies Printed Immediately After Release of Her First Photobook; Total Print Run Reaches 155,000]. Oricon News. Archived from the original on January 21, 2021. Retrieved January 21, 2021.
  26. ↑ 日向坂46・齊藤京子1st写真集がBOOKランキング1位 大胆な純白ランジェリーカットも収録【オリコンランキング】 [Hinatazaka46's Kyōko Saitō First Photobook Ranks No. 1 in the BOOK Rankings; Also Includes Bold Pure-White Lingerie Photos [Oricon Ranking]]. Oricon News. Archived from the original on June 23, 2022. Retrieved June 23, 2022.
  27. ↑ 写真集ランキング1位～10位 [Photobook Rankings 1–10]. Oricon News. November 29, 2021. Archived from the original on November 28, 2021. Retrieved June 26, 2022.
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  45. 1 2 3 宮世琉弥＆日向坂46齊藤京子「ミュータント・タートルズ」で声優初挑戦 [Ryūbi Miyase & Hinatazaka46's Kyōko Saitō Make Their Voice-Acting Debuts in Teenage Mutant Ninja Turtles]. Natalie (in Japanese). July 11, 2023. Archived from the original on July 11, 2023. Retrieved July 11, 2023.
  46. ↑ @cupstar_jp (May 20, 2023). #カップスター ・ #日高屋 ・ #日向坂46 #齊藤京子 がコラボ✨ 日高屋監修 チゲ味噌ラーメン タテビックが全国のコンビニ他で5/22より発売決定🙌🏻 [#CupStar, #Hidakaya, and #Hinatazaka46 #KyōkoSaitō Collaborate ✨ Hidakaya-supervised Jjigae Miso Ramen TATE BIG to be Released Nationwide at Convenience Stores and Elsewhere from May 22 🙌🏻] (Tweet) (in Japanese) – via Twitter.{{cite web}}: CS1 maint: url-status (link)[dead link]
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  65. 1 2 @saito_kyoko95 (October 12, 2026). Sony Musicより、ソロシンガーデビューが決定いたしました！🎉✨ デビュー曲「元気にしてた？」が10月21日(水) デジタルリリース決定🎧💿 [From Sony Music, I’ve been confirmed to make my solo singing debut! 🎉✨ My debut single, “Genki ni Shiteta?,” is set for digital release on Wednesday, October 21. 🎧💿] (Tweet) – via X (formerly Twitter).
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  85. ↑ @sonysonpo_jp (January 9, 2022). 皆さん！フォまもりCMの3人目、日向坂46 齊藤京子さん出演のソニー損保の自動車保険の新CM、いよいよ本日から放送開始です📺 ドライバーの安全運転を見守る齊藤さん♡ まだ見てないよ👀という方はこちらをチェックしてくださいね！ [Hey, everyone! The third installment of the "Fomamori" commercial series, featuring Hinatazaka46's Kyōko Saitō in a new Sony Assurance car insurance ad, starts airing today! 📺 Saitō watches over drivers to help them drive safely ♡ If you haven't seen it yet 👀, check it out here!] (Tweet) (in Japanese) – via Twitter.
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  94. 1 2 3 日向坂46 齊藤京子、満を持してシングル初センターに デビュー時から一貫した“歌姫”としての存在感 [Hinatazaka46's Kyōko Saitō Takes On Her First Single Center Position at Just the Right Time; Her Presence as a "Diva" Has Remained Consistent Since Her Debut]. Real Sound (in Japanese). September 15, 2022. Retrieved October 5, 2026.
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  97. ↑ けやき坂46舞台『あゆみ』初日会見＆ゲネプロ 加藤史帆「稽古期間を20人で過ごせて仲も深まった」 [Hiragana Keyakizaka46's Ayumi stage play: Opening-day press conference and dress rehearsal; Shiho Kato says the 20 members grew closer during rehearsals]. Real Sound (in Japanese). April 20, 2018. Retrieved July 24, 2022.
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  99. ↑ けやき坂46初！ 齊藤京子がMBSラジオ『イマドキッ』で単独ラジオレギュラーに [A first for Hiragana Keyakizaka46! Kyōko Saitō becomes the group's first member to have a solo regular radio show on MBS Radio's Imadoki]. What's In? (in Japanese). December 29, 2018. Archived from the original on March 29, 2021.
  100. ↑ "日向坂46齊藤京子：キュートなルックスで低音ボイス 日向の歌姫"きょんこ"" [Hinatazaka46's Kyōko Saitō: Cute looks and a deep voice make "Kyonko" the group's songstress]. MANTANWEB (in Japanese). May 24, 2020. Retrieved October 23, 2026.
  101. ↑ 本日4月25日（土）24:00～MBSラジオ「アッパレやってまーす！～土曜日です～」に齊藤京子のレギュラー出演が決定！ [Kyōko Saitō confirmed as a regular on MBS Radio's Appare Yattemasu!: It's Saturday, airing today, April 25, from midnight]. Hinatazaka46 Official Website (in Japanese). April 25, 2020. Retrieved October 23, 2026.
  102. ↑ 『齊藤京子のオールナイトニッポンX』放送決定 ANNに単独初登場「私らしく、飾らずにお届けできたら」 [Kyōko Saitō to host All Night Nippon X; making her first solo appearance on ANN, she says, "I hope to deliver the show in my own natural, unpretentious way"]. Oricon News. October 9, 2026. Retrieved October 23, 2026.
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