No backdrop availableけいおん!! 番外編 「訪問!2010ComedyAnimationMusicNaoko YamadaSeptember 28, 2010Save to watchlistMark as seenShareDetailsStatusReleasedRelease dateSeptember 28, 2010Original languageChineseProductionKyoto AnimationCastYoko Hikasa,Ayana Taketatsu,Satomi Sato,Aki Toyosaki,Naoko Yamada,Minako KotobukiDirectorNaoko YamadaBudgetNot recordedRevenueNot recordedIMDbView on IMDb