If you have just a few coins in your pocket and the slightest craving for sushi then of course Kappa Sushi franchise is a very satisfying option on a budget. Any 2 pieces for only 100 yen(plus 8 yen tax). Interior is extremely spacious, the touch panel ordering system in multiple languages with lots of pics a pleasure and the mini-bullet train that brings your order is fun fun. Just imagine McDonald’s of sushi… don’t expect too much as their margins are most likely very low but very family friendly and easy in easy out.