So the Japanese celebrate a Christian holiday?
My wife is like me...we really aren't sure and neither of us agree that most of Christianity or any other religions had 'righteousness' at it's heart. It's a paradox in it's essence.
My wife has only been here about 10 years of her nearly 50 year life. Many Japanese celebrate Christmas from a family/gift-giving aspect.
We have two teens+, 4 boys (baby,2,5,8)...they like our toys each year and they somehow become their favorites even when we have some doubts if they'd like them or not.
However, many times they swap the gifts later on. We picked up this little baby toy that was a funny creature that makes silly sounds for the 4 year old a few years ago...he didn't like it, but the 2 year old now never parts with it and wanted it since a baby.