Shusaku met Genan Inseki in July 1846 when he returned to Edo after staying in Onomichi for eighteen months. Shusaku was 17 years old and a 4-dan player at the time, while Genan was nearing his fifties and was ranked at 8-dan.
In July 1846, Shusaku met Genan Inseki upon returning to Edo after spending eighteen months in Onomichi. At seventeen years old and a 4-dan player, Shusaku was younger than the fifty-something Genan, who held an 8-dan ranking.