Digital Minister Kono: It's important to draw a clear line between the party who instructed non-disclosure and the party that received the order. Kono says decisions should be made based on the weight of responsibility.

The Liberal Democratic Party's executive committee has a policy of disciplinary action against the members involved in this matter as soon as possible, he says. "If it's income, I think a good idea would be to do a trial calculation and return it to the government with additional tax, to make a difference"