I bought it from Nippon Yasan.

So I received the figure today and kastam did indeed open my parcel for inspection. The figure box is wrapped with bubble wrap, so they opened a small hole to see the content. Thankfully they opened the parcel from the bottom, so they only saw the back of the figure. Not sure what will happen if they saw the front 

Btw is it just me or kastam has been really strict these days? Within this month, I have two parcels opened for inspection.