The Soga brothers, grandsons of Sukechika, grew up under difficult circumstances, and the elder brother Ichimanmaru, having attained manhood took over as head of the Soga family, identifying himself as SOGA no Juro Sukenari.
祐親の孫である曾我兄弟は厳しい生活のなかで成長し、兄の一萬丸は、元服して曽我の家督を継ぎ、曾我十郎祐成と名乗った。