Very good news to hear this news, but there is a service from Japan called
Zenmarket that accepts Bitcoin and other cryptocurrency payment for years, so you can use it even now for additional fee.
What is interesting that Zenmarket was already working with Mercari, Rakuten, Amazon and YahooShopping all this time, this are all biggest shopping giants in Japan
Zenmarker is using Coingate and they charger 3.5% deposit fee, same like for other payment options like Paypal, Alipay and card payments.