Many sushi makers around the city are starting to battle each other. They are coming with new recipes to attract even more customers. One restaurant is using more chilli, the other one is using special flavor made in Japan. You should definitely come up with something similar, or your competition is going to destroy you very soon. Bet on speed, be first to serve the customers. This might bring you the money! Study all sushi recipes, and prepare them faster than your competitors. Have fun.