There are many brands of frozen gyoza in Japan.
This one happen to be 王将 O-sho.
Do you cook gyoza at home?
I use vinegar and wasabi to eat them.
Most people use vinger, soy source and hot oil.
Bento is a Japanese lunch box.
This is a good concept. I have to try it sometime.
But I really like to see デパ地下 DepaChika / Food section in the department stores.