Although Yasuo couldn't meet Yukiyasu, in Wakayama he met Yukiyasu's pupil Sotetsu MISAWA and they became friends; they had kept a close relationship by introducing friends or sending works and information to each other until Yasuo died in 1859.
この日を境に、嘉永年間に入門した愛弟子の参澤宗哲と紀州で邂逅し意気投合、安政6年に貞雄が死ぬまでの五年間、相互の交流や互いの自著や情報を交換したりして交遊関係を続けている。