Are there coin lockers or other left luggage services inside customs in the Kansai International Airport? I'll be traveling soon, and have an overnight layover in Osaka. I've also newly started taking a medication that's prohibited in Japan (but legal with Rx everywhere else I'll be). Is there a way to leave it in coin lockers or with other left luggage before I go through customs? Overnight? That way, I'd be able to pick it up the next day before my flight, but avoid bringing a controlled substance through customs. I'll leave it at home otherwise, but I'd be relieved to bring it and not have to worry about potential legal issues.