Opting out of Japanese pension

[AreTheyTheLemmings?]

I hope I don't derail this thread too badly, but there's something I've been meaning to ask imaginatorium.

my puzzle shop

Are your customers mainly individuals or businesses (e.g., shops looking to stock up)? It's an excellent niche you've carved out there; puzzles aren't really my thing but I imagine it's really enjoyable for someone who's into it - both buyer and seller.