Home›Characters›Hiroshi NaganumaCharacterHiroshi Naganuma長沼博士FavoriteAlso known asHiroshiGenderMaleBirthdayAugust 22OverviewCommentsAppears in2 entriesMainMizuiro Jidai水色時代TV series · 1996Jun Akiyama (Japanese), Davide Garbolino (Italian)MainMizuiro Jidai水色時代Serialized · 1991CommentsNo comments yet. Write the first one