Gender: Male Occupation: Unemployed Hometown: Tokyo Hisanobu Sakamoto is Ryōta Sakamoto's stepfather and Yukie Sakamoto's husband. (Source: Btooom! Wikia)
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Gender: Male Occupation: Unemployed Hometown: Tokyo Hisanobu Sakamoto is Ryōta Sakamoto's stepfather and Yukie Sakamoto's husband. (Source: Btooom! Wikia)
