Ojisan and Marshmallow Kusaka is an older man who loves marshmallows, and Wakabayashi is an OL (office lady) who loves Kusaka. Their relationship unfolds at their office. Details Casts Galleries Posters Season Lists Title Ojisan and Marshmallow Genres Animation Comedy First Air Date 2016-01-08 Last Air Date 2016-03-25 Episode Runtime 00 Hours 04 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 12 Runtime 4 Production Companies Creators in Pack Kana Hanazawa... Mioko (voice)... Tetsu Inada... Habahiro Hige (voice)... Tetsuya Kakihara... Isamu Wakabayashi (voice)... Eri Kitamura... Iori Wakabayashi (voice)... Original Size (1920x1080) Original Size (1560x2340) Original Size (1000x1500) Original Size (1000x1500) Original Size (800x1052) Season 1 12 Episode(s) 2016-01-08