>>less than a gram of molly
>Who cares, it's obviously not for distribution. Just give her a huge fine.
Contraband ought to be treated seriously. Playing-tourist-while-nigger is no defense. Japan is a distinct society. If you can't abide by their rules, just don't come. This ain't like showing up at someone's house and being unexpectedly asked to leave your shoes at the door.

There are tons of warnings. Doesn't matter where you look, websites, embassies, consulates, etc, they all say the same thing: "leave that shit at home". Even over the counter prescriptions. Ignore those warnings at your own peril.