Article · Wikipedia archive · Last revised Jul 12, 2026

Monogatary.com

Monogatary.com is a social networking service website, owned by Japanese entertainment conglomerate Sony Music Entertainment Japan. Taking name for Japanese word monogatari , the website focuses on creative writing and illustration, where users can submit works based on a daily updated theme. Furthermore, it also incorporates social network service features. The works submitted on Monogatary.com have been adapted into various forms, such as books, audio-books, anime series, films, games, or songs, etc.

Last revised
Jul 12, 2026
Read time
≈ 2 min
Length
566 w
Citations
21
Source
Wikipedia ↗
Monogatary.com
Logo used since 2023
Type of businessSubsidiary
Type of site
Social networking service
Available inJapanese
Headquarters
Tokyo
,
Japan
OwnerSony Music Entertainment Japan
FounderYohei Yashiro
URLmonogatary.com
LaunchedOctober 30, 2017
Current statusActive

Monogatary.com (stylized in all lowercase) is a social networking service website, owned by Japanese entertainment conglomerate Sony Music Entertainment Japan. Taking name for Japanese word monogatari (物語; lit. 'story'),1 the website focuses on creative writing and illustration, where users can submit works based on a daily updated theme.2 Furthermore, it also incorporates social network service features.3 The works submitted on Monogatary.com have been adapted into various forms, such as books, audio-books, anime series, films, games, or songs, etc.45

Yohei Yashiro launched the website on October 30, 2017.6 In 2014, Sony Music Marketing (now Sony Music Solutions), a subsidiary of SMEJ, proposed creating a creative writing submission website. Despite internal positive reception, the idea did not align with the company's primary focus on music marketing. A year later, as the SMEJ business program EnterLab launched, SMM's then-supervisor suggested Yohei Yashiro, who had previously helped on the unsuccessful project, to resume the creative writing submission website.7 Since 2018, the website has hosted an annual fiction contest, Monocon, divided into various categories and awards.8

Monogatary.com is best known for its fictional stories that have become sources for songs performed by duo Yoasobi.9 Notable works includes "Yoru ni Kakeru", based on the Monocon 2019's Sony Music Award winners, Mayo Hoshino's Thanatos no Yūwaku,10 was a massive commercial success amidst COVID-19 pandemic in Japan in 2020 and established their musical career.11 The duo and the website later held another contest, called the Yoasobi Contest, for three times.121314 Other musical collaborations include Halca,15 Omoinotake,16 Kana Nishino,17 Adieu,18 Hitsujibungaku,19 Tatsuya Kitani,20 Yama, etc.21

References

References

  1. Baek, Seol-hui (July 17, 2023). "Will YOASOBI's night-time escapades keep going on?". Weverse Magazine. Retrieved January 1, 2026.
  2. "「お題」に基づく物語投稿サイトmonogatary.comってなに?". Da Vinci (in Japanese). July 17, 2018. Retrieved January 1, 2026.
  3. "書く、読む、描く、そして交流するストーリーエンタテインメントプラットフォーム『monogatary.com(モノガタリードットコム)』始動". Sony Music Entertainment Japan (in Japanese). October 30, 2017. Retrieved March 30, 2026.
  4. Iwasawa, Shiki (October 9, 2024). "Behind the idols: The story of the duo who 'created' Yoasobi". The Asahi Shimbun. Retrieved January 1, 2026.
  5. "YOASOBIも輩出、monogatary.comの面白さ AMAOTOら続々生まれる音楽×物語の新たな関係性". Real Sound (in Japanese). February 8, 2021. Retrieved January 9, 2026.
  6. "SME、ストーリーエンターテインメントプラットフォーム「monogatary.com」のサービスをオープン". The Nikkei (in Japanese). October 30, 2017. Retrieved January 1, 2026.
  7. Shida, Hidekuni. "monogatary.comという"物語のタネ"の芽吹き【前編】". Cocotame (in Japanese). Retrieved January 1, 2026.
  8. "「思いがけない、カタチになる」monogatary.com初のコンテスト「モノコン2018」結果発表". PR Times (in Japanese). October 1, 2018. Retrieved January 1, 2026.
  9. Kiyokawa, Jin (November 5, 2020). "YOASOBI transforms fiction into music". Yomiuri Shimbun. Retrieved January 1, 2026.
  10. "みんなが知ってる「YOASOBI」デビュー曲、でも誰も知らない原作者...星野舞夜さんのシンデレラストーリー". Sports Hochi (in Japanese). October 24, 2020. Retrieved January 1, 2026.
  11. Hosoda, Narushi (September 9, 2020). "YOASOBI、大ヒットの背景は「現代のリアリティとの共鳴」". News Postseven (in Japanese). Retrieved January 1, 2026.
  12. Onuma, Osamu (September 26, 2020). "YOASOBI(ヨアソビ)が「たぶん」原作者と初対面 小説と音楽、行き来して作品が大きくなっていく". Good Life with Book (in Japanese). Retrieved January 1, 2026.
  13. Aoki, Genya (September 1, 2021). "YOASOBIの新曲「大正浪漫」の世界に入り込む展示が銀座で開催". Time Out Tokyo (in Japanese). Retrieved January 9, 2026.
  14. "YOASOBI、新曲「もう少しだけ」の配信リリース決定、自身がパーソナリティを務めるラジオ番組で初フルオンエア解禁". Spice (in Japanese). May 4, 2021. Retrieved January 1, 2026.
  15. "YOASOBIも輩出、monogatary.comの面白さ AMAOTOら続々生まれる音楽×物語の新たな関係性". Pia (in Japanese). February 8, 2021. Retrieved January 1, 2026.
  16. "Omoinotake、monogatary.comのコラボ曲「プリクエル」配信開始&MVプレミア公開". CDJournal (in Japanese). June 30, 2021. Retrieved January 1, 2026.
  17. "西野カナ、サブスク全曲解禁記念として大人気小説投稿サイトmonogatary.com×大人気イラストレーター"ごめん"とのスペシャルコラボ企画決定!". De Colum (in Japanese). June 4, 2021. Retrieved January 1, 2026.
  18. "adieu(上白石萌歌)、YOASOBIを輩出の小説投稿サイト「monogatary.com」とコラボ". Encount (in Japanese). June 10, 2021. Retrieved January 1, 2026.
  19. "羊文学 × monogatary.com × 講談社の小説募集企画『第二回 羊文学賞』始動 第一回大賞作品まとめた電子書籍も". Spincoaster (in Japanese). October 22, 2021. Retrieved January 1, 2026.
  20. "キタニタツヤ、楽曲「ちはる」MVプロジェクト始動。monogatary.comとのコラボレーション・コンテストにて同曲からインスパイアされた物語募集". Skream!. February 4, 2023. Retrieved January 1, 2026.
  21. "yamaの新曲「Ever」夏夜米子の小説『you are my』を原作に". Fashion Press (in Japanese). July 17, 2025. Retrieved January 1, 2026.
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