Postal postcard with new year's card for new year's card, released today

So, I went to buy a while ago. Next year is the Year of the Year, so it looks like this. One piece for inkjet 50 yen, one for glossy photographic printing 60 yen. If you buy a lot at once, it seems there are post offices that can get gifts. I got something. What is in it?

The rest is below.
Publish New Year's postcard and year-end stamp for Heisei era 2007

It was a bunch of 50 cards earlier, but if it is 200 units it will be like this


So this is a gift item


A mysterious creature came out, something like a wild boar


The piggyback box whose back of the head was incised was its identity. Is the cushion red?