Tsukino KatsuraMasuda Tokubee Shoten Co., Ltd. FactoryFoods and drinksGraphicsLogos / IP support Staff credits Issay Kitagawa Related works BARCLAY Kawano Co., Ltd. MUCOTA NAKAGAWA Co., Ltd. I-REF The University of Tokyo Fukukura FUKUNISHIKI SAKE BREWING CO.,LTD. Tokyo University eraser The University of Tokyo Y’s Corporation WISE Corporation.