In those days, engrossed in Japanese swordsmanship training, he won a championship under presence of the lord of Nagoya castle, with the result that he was adopted by Sai SHIMADA in Ogaki Domain, who was captivated by Kai SHIMADA, to succeed the Shimada family.
そのころか、剣術修行に目覚め、名古屋城内の御前試合で優勝し、大垣藩の嶋田才に見初められ養子となり嶋田家を継ぐ。