He lived with Yukichi in Teppozu, Tsukiji (present Akashi-cho, Chuo Ward, Tokyo Prefecture) and became the first member of 'a small private school' of Western studies (the predecessor of Keio Gijuku) opened by Yukichi.
築地鉄砲州（現在の明石町(東京都中央区)）で諭吉と同居し諭吉が開いた蘭学塾「一小家塾」（後の慶應義塾）の第1期生となった。