However, he was suddenly suspected of engaging in secret communication with the Dutch in October 30, 1698, and after he was sentenced to heiko (heiko is the same meaning as house confinement in samurai family), he was dismissed as a translator.
ところが、元禄11年9月27日(旧暦)（1698年10月30日）、突如オランダ人との内通の疑いをかけられて閉戸（武家の閉門と同義）に処せられて通詞を解任される。