Thank you so much for this amazing surprise Futabako! ;)
On top you can see the original "envelope" and the stamps. Then, inside another small package (3rd picture), there was a origami; stickers; small cards and Japanese manga bookmarks!
On the last, a letter from the sender :)
Curiosity about Japan:
- Mobile phones in Japan have a credit service that allows you to pay bills and buy a soda from vending machines scattered around every corner.