Ore No Imouto Ga Konnani Kawaii Wake Ga Nai - Official Wallpaper Calendar 2012

Ore no Imoto ga Konna ni Kawaii Wake ga Nai (My Little Sister Can't Be This Cute), also known as Ore no Imōto or Oreimo for short, is a Japanese light novel series written by Tsukasa Fushimi, with illustrations provided by Hiro Kanzaki. Nine volumes have been published since August 2008. A manga adaptation drawn by Sakura Ikeda was serialized in ASCII Media Works' Dengeki G's Magazine. A 12-episode anime adaptation produced by AIC aired in Japan between October and December 2010. Four additional episodes, which offer a different ending to the broadcast series, were streamed monthly via the official website and other video streaming sites between February and May 2011, before being released on Blu-ray Disc and DVD in June and July 2011.