In 1962, Isao Shibata debuted as a pitcher for the Giants, but his talent was overlooked and he was told to switch to the field. A young girl named Kiriko appeared in front of the discouraged Shibata and presented him with a secret book of Kouga Ninjutsu that she found by chance in her hometown. With her encouragement, Shibata vowed to make a fresh start as a fielder, and learned the secrets of the ninja arts written in the book one by one.

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• Ikki Kajiwara — Story