KIDO found out about these circumstances, and on a letter dated April 17 which he entrusted Tomozane YOSHII and sent to OKUBO, he explained that the present situation of the currency circulation is 'totally paralyzed,' and that if this situation is left alone the Imperial Rule Restoration (Meiji Restoration) would not go as they wanted, along with indirectly saying that if the Satsuma Domain did not reveal by themselves the fact that they were manufacturing counterfeit money, the Satsuma Domain's reputation regarding the restoration would be ruined.
木戸はこの事情を知って、4月17日付で吉井友実に託して大久保に送った手紙において、貨幣の流通の現状は「全身不随」であり、このような状況を放置しては大政一新（明治維新）はままならないこと、そして遠回しながら薩摩藩が自ら贋貨製造の事実を明らかにしなければ、維新における薩摩藩の名声は地に落ちることになると説いた。