Alipay overseas (e.g. in Kyoto) only works for Chinese citizens.
Anecdote: I tried to pay with Alipay in a Uniqlo store on my last trip to Japan. The payment failed, so I paid by card instead. A minute later I received an SMS from Alipay telling me it was because international payments are only available to Chinese ID card holders.
Anecdote: I tried to pay with Alipay in a Uniqlo store on my last trip to Japan. The payment failed, so I paid by card instead. A minute later I received an SMS from Alipay telling me it was because international payments are only available to Chinese ID card holders.