Here is the info from their English site:
Let's spend a wonderful Christmas with PUFFY while eating a special dinner.
I've heard that dinner show's is the gateway to success for young artists.
17 years and finally...I'm too full for words.
Please enjoy a PUFFY-like dinner and show.
Ever since our debut, the management's plan for us to wear thoses jeans and t-shirt...
Phew, we're finally free, and the time has finally come for us to change into our own dress!
【Kobe】December 20, 2013 (Fri)
Hotel Okura Kobe 1F "Heian-no-ma"
Ticket: 36,000 Yen(Food・Drinks・Service charge included)
※children preschool age and younger not allowed
【for 9/21 only】078-333-3800 (10:00～19:00)
【from 9/22日～】078-333-3801 (10:00～19:00)
It might have been someone commenting here or from another blog (full credit to the original writer, I honestly can't remember which it was) discussing these holiday shows and how more established artists turn to doing these shows. For about 360 dollars a head it is probably a decent revenue source, but finances aside it feels like Puffy has turned a corner in their career and I am not entirely sure I know how I feel about that. Ultimately if it leads to more good music, that is not much of a worry at all.
Also noted it was in Kobe, which I also find interesting. I wonder if it is a finding an opening geogrpahically or partnering with a hotel to host. Probably great for people around the Osaka metro area, kind of a hike for folks in Tokyo.