Media & Entertainment Japanese Mobile Social Gaming Startup Gumi Raises $26 Million Mobile social gaming is big in Japan. Very big. Mobile gaming publisher Gumi, which has been growing very rapidly lately, raised $26 million last week in a series F round from Jafco, Shinsei Bank, and DBJ Capital. It previously raised a total of $7 million. I visited Gumi’s offices and spoke with founder Hironao Ku