Kumawakamaru went over to Sado Island at the age of 13, and when he learned of his father's death, he made up his mind to avenge his father. He attacked his enemy Nyudo HONMA, taking advantage of the darkness at a stormy night, and although he could not capture Nyudo, he fatally stabbed a killer working under Nyudo, Saburo HONMA.
阿新丸は、13歳で佐渡に渡り、父の死を知ると敵討ちを決意し、夜間嵐に乗じて父の仇本間を襲い、入道は獲られなかったが、斬手本間三郎を刺し殺した。