In 1869, after released, he established an English school in Setomono-cho, Nihonbashi; however, he was suspected that 'he gathers people to plot for the downfall of the government' and arrested for a while.
1869年、放免後、日本橋瀬戸物町に英学指南所を開くが「政府転覆のため人を集めているのでは」と疑われ一時捕縛される。