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After GrandMaster Otsuka’s mother died, he quit the bank and he had retirement money of 1000 yen, which had a value to executives as one year of income.
While GrandMaster Otsuka was working at the bank, he went to school to study orthopedics and was the first to graduate from the school.
GrandMaster Hironori Otsuka and the present GrandMaster Jiro Otsuka were invited to the base to demonstrate, which they enjoyed because there was no food in Japan and they could eat there but could not take food away from the base.