How much money is allowed in Japan?

Could you kindly elaborate on the matter of monetary limits in Japan? I'm particularly interested in understanding what the legal allowances are in terms of cash holdings. Is there a specific ceiling that individuals are permitted to possess, and if so, what are the consequences for exceeding this limit? Additionally, are there any exceptions to this rule, perhaps for businesses or other entities? I'm seeking clarity on this matter to ensure my financial dealings in Japan are fully compliant with the local regulations. Thank you for your assistance in clarifying this important aspect of Japanese financial law.