Ginpei, in an act of desperation to get money for his gravely ill mother, was laughed at and ended up fighting with the companions of the castle patrol Matsunomura Genba, including Onimatsu. He was later reconciled by the family elder Ishikawa Yoriimo, who also gave him some money. Returning home happily, Ginpei found that his mother had already passed away. Okin, the daughter of a soba shop owner, comforted the heartbroken Ginpei, who in gratitude became affiliated with the Ishikawa household. Ginpei, a ruffian but ordinarily a quiet and honest man, became favored by Yoriimo's wife Chiyo and their child Harunosuke, and he began to accompany Yoriimo to the castle. Inside the castle, the family elder Otsuki Gyobu was in cahoots with Yoshitada's favorite concubine, Osada no Kata, and together with the treacherous Genba, they were plotting to establish Osada no Kata's child, Seinosuke, as the heir.

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