This is a small event thats happening for one day. It is a Theme maid/butler resturant. You can either volunteer as an artist, maid/butler, or simply enjoy your meals and eat there! Food looks tasty too and you can play games with your maid or butler. Here is a link if you are interested. Feel free to cosplay and enjoy your time there :). They also have games(ping pong, billiard, etc)
http://pancon.weebly.com/