It could be a scam or hoax as i searched for it on the internet. But if this is true, it would a great step for BTC. Bitcoin is future and im telling it since day one. Sooner or later crypto will surely take the place of paper notw.
For now I think it is only a rumor but it will become true I assure you of that because Japan have Bitcoin legalized after all. It is normal for a company to accept something of value that is legal but I don't think crypto will ever replace the current fiat currencies we have now. If it ever did go mainstream, it would only become a substitute to a credit card.