Yū and Ai Madobe

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General Information
Full NameYū (right) and Ai (left) Madobe
BirthdayNovember 18
Universe/OriginMadobe Universe
PersonifiesWindows 8 and 8.1
Height152 cm
Hair ColorLight Brown
Eye ColorBlue , with rainbow reflect

Yū Madobe (Japanese: 窓辺ゆう, Madobe Yū) and Ai Madobe (Japanese: 窓辺あい, Madobe Ai) are moe characters representing Windows 8 and 8.1[1].


Their first formal mention was in an Akiba-PC article[2] from October 11 2012, announcing the Windows 8 Pro DSP Release Commemorative Packs by Windows Navi+ featuring the sisters, that came with some copies of Windows 8 during its launch in Japan in 2012. However, the Yū's silhouette already appears in a video[3] from April 25 2012 that features Claudia Madobe.

This fact and early artworks suggest that Yū was intended to be the only representative of Windows 8, and it was then only decided later to make another character.


  • Born: November 18, 1996 (15 years old[5]);
  • Height: 152 cm (8 cm less than Nanami)
  • Personality: the older sister, yet you'd want to protect her like a little sister. She loves digital gadgets and gets very passionate when it comes to her hobbies. A hidden Otaku (or not) who owns a slate PC and handily uses tablets, smartphones, and PCs.
  • Hobby: following the latest news about digital gadgets. Not good at sports.


  • Born: November 18, 1996 (15 years old[5]);
  • Height: 152 cm (8 cm less than Nanami)
  • Personality: she has a more diplomatic and cheerful personality than her older sister Yū, loves new things, and is interested in trending things among the junior high school girls, in addition to digital gadgets.
  • Hobby: following the latest news about digital gadgets and anything trendy. Not good at sports.

Notable Appearances


  • In the Akihabara Moe Characters Contests, Yū ranked third and Ai fourth in 2012.
    • Among the members of the Madobe Family that participated in the contest, Ai is the only one who never reached a top 3 position, though she was only 4 votes behind Yū in 2012.

See also

Notes and references

  1. The reason why two characters were created is unclear. However, it is a common misconception that one would have been made to represent 8 and the other 8.1, which cannot be true as both debuted at a time no one could have guessed the release of 8.1. Another common theory that one would represent 8 and the other RT is unlikely as both were used to promote Windows 8 Pro in the Commemorative Packs. But since they continued to be used to promote Windows 8.1, we can consider that they represent 8 and 8.1 as a whole.
  2. https://akiba-pc.watch.impress.co.jp/hotline/20121013/etc_ms3.html
  3. https://www.youtube.com/watch?v=ydJinL8Ln3Q
  4. Akiba-PC article about the Yū and Ai's Debut
  5. 5.0 5.1 At the time the Profile was published