Dangerous Jiisan Ja (TV) Anime Details and Episodes Another TV anime adaptation of Dangerous Jiisan Ja manga by Soyama Kazutoshi, serialized in Monthly Bessatsu CoroCoro Comic. Series info Watch free DetailsFormatTv shortStatusFinishedEpisodes10Duration4 minSeasonFall 2012StudiosJ.C.STAFFCountryJapan GenresActionComedy TagsParodyKidsChibi RelatedDangerous Jii-san Ja (Source)Dangerous Jii-san Ja (Alternative)