The Japanese parking model essentially prohibits all on-street parking with some exceptions for daytime and evening parking, where permitted. There is also a rule that forbids overnight street parking after 3am in the whole country. The larger and more important part of the law requires everyone to demonstrate that they have a legal off-street parking spot before they can purchase a car, those spots can be owned or rented, but they will not register your vehicle without this proof. This requirement means that if you don’t have access to an off-street parking spot for your car, you cannot get a car.