That's not even going into their de facto slavery with foreign construction workers, environmental damage, and sexism.
In all honesty you can basically apologize out of a lot of crimes and police generally don’t bother with anything else unless there’s video evidence, they catch you in the act, or you’re a high profile person involved in a high profile act.
Just never get caught with drugs in your possession, and if you get caught with personal amounts, apologize and cry. Not kidding.
(The inverse is also true: Japan is rather lax about CSAM possession, about to the same degree as America is lax about weed possession. It's technically a crime but most people caught will be let off with a fine and a warning.)