Why some phones from Amazon Japan says that the NFC is limited?

it says this : NFC but can't use money wallet due to Japan limitation

I was looking at the Xiaomi poco f6 pro.

I guess they just want you to buy those expensive japanese phones from docomo with monthly installments.
Or to buy the iphone even if that's American.. idk

Edit: I've been told that docomo also sells Samsung devices but not xiaomi. I guess they don't like Chinese brands