In 1878, her husband Munemitsu received a sentence of five years' imprisonment for suspicion of taking part in the movement to overthrow the government, and he was imprisoned in the Yamagata prison (later moved to the Miyagi prison).
1878年（明治11年）、政府転覆運動に荷担した疑いで夫の宗光が禁固5年の刑に処せられ、山形監獄（のちに宮城監獄）に収監された。