He had entered the Yasui family when he was still young, and would eventually be promoted to 7 dan on December 24, 1848. Unlike many strong players of his time, Ota never once competed in the castle games.
He joined the Yasui family at an early age and eventually achieved 7 dan status on December 24, 1848. Unlike many skilled competitors of his period, Ota did not participate in the castle games.