Deddobôru plot
Jubeh Yakyu is Japan's most feared and most dangerous juvenile delinquent. He accidentally killed his father with a very powerful baseball pitch and then decided to retire from baseball. Jubeh, now a criminal of just 17 years old, is sent to reform school. The school principal is Ishihara, the granddaughter of a World War II Nazi. She runs the institute with an iron hand and the enthusiastic help of her sadistic assistant Ilsa. After Jubeh arrives, he learns from Governor Mifune that his younger brother Musashi was also there after he committed a series of murders. Musashi, however, died a mysterious death. Jubeh gets the chance to play on the school's baseball team and knows that his brother's death somehow has something to do with the team.