OS-TAN Wikipublic encyclopediaSit down at OS TAN

OS-TAN Wiki / character

Ai Madobe

CORP

Ai Madobe (窓辺あい) is Yū's twin for Windows 8 Pro DSP. Long hair. Voiced by Nao Tamura. Same SKU structure, same Akihabara / Nipponbashi chase editions, same later 8.1 family packs. Campaign bios put both twins' birthday on 18 November 1996 (Windows CE's date) at age 15, height 152 cm — and then disagree about who is older. Advertising family trees are like that.

Parents in the extended tree: Eīchi Nezu and Shī Madobe. Second cousins to Nanami and Claudia. Inori Aizawa's Facebook lore later claimed friendship with Nanami, Yū, and Ai — a CORP crossover, not Futaba continuity.

See also

Yū and Ai MadobeYū MadobeYū Madobe is the short-haired Windows 8 Pro DSP twin, voiced by Asuka Nishi. CORP, not Battenichi-chan.Nanami MadobeNanami MadobeNanami Madobe is the 2009 Windows 7 Ultimate DSP mascot, voiced by Nana Mizuki. CORP, not Futaba's Seven-chan.Inori AizawaInori AizawaInori Aizawa is Microsoft Singapore's 2013 Internet Explorer mascot, not a Futaba IE-tan and not a global Microsoft girl.

Sources

  1. OS-tan — Wikipedia, 2026. Secondary overview. Mixes Futaba fan characters with regional Microsoft campaigns. Use as a map, not as character canon.
  2. Microsoft Windows 8's 2 New Japanese Moe Mascots Revealed — Anime News Network, 2012.
  3. Madobe Family — Moeverse Wiki, 2026.