Console gaming in Japan isn't doing all that well since they transitioned to more mobile and portable gaming. If I were Xbox I wouldn't bother. You play to your strengths and the Japanese market isn't nor will it ever be a strength for them.
I mean I'm pretty sure the PS4 got outsold by the Switch in Japan despite it having a 3 year head start. If those are the results Sony an Japanese brand can achieve Microsoft should just move on.