He witnessed the commotion that occurred due to the arrival of Matthew Perry in the spring of 1860, and he pleaded with his father when he was sixteen years old to represent the good family and left for Edo in order to train in medicine.
万延元年（1860年）春、マシュー・ペリー来航以来の騒乱を見て、名家の身を立てるべく16歳で父親に懇願、医術修行の名目で江戸へと発つ。