Japan does not have a system of law. They were forced by the US after WW2 to pretend they care about these things, so they just looked what other countries have

Japan does not have a system of law. They were forced by the US after WW2 to pretend they care about these things, so they just looked what other countries have, translated it, and from then on they were able to show anyone who asked "see here we have these huge volumes with lots of written down laws, what do you want from us?" But in reality, laws are extremely relative in Japan, much more so than in any stable Western country.