My coworker/friend was kind enough to give me a couple packs of cards. I don't usually open packs in Japan, but I owe him a pizza or beer now.
The pack I'm going to share with you is from 2013 BBM 2nd Version. It's the second series of BBM's flagship set. The packs generally sell for about 300 yen, and contain 10 cards each.
This is a good start: Tomonori Maeda just retired and is a lock for the Japanese Baseball Hall of Fame: he has 2119 hits and a career batting average of .302 over 23 seasons (limited playing time in the past four years, though).
I had a good time opening this pack. Maybe even more than my 2014 Topps jumbo pack. That could be because it was free, or because the jumbo set me back $15. But I'm saving my money for singles and oddities, so don't expect many more Japanese pack busts!