Kuaina is really a great burger chain, I went there three or four times in Tokyo. At that time I haven't even realized that the meat was frozen ones. How do you got the difference?
Anyways, the sandwiches are also very delicious. そういえば、I should go to grab a burger there in future as my last time is years ago :D
Well you could tell it was not freshly minced jn the restaurant. The original has a much bigger meat insode
Oh haven't known this. I will pay attention next time if I can realize this too :)