Setsubun is the day before the first day of spring according to the lunar calendar. Setsubun falls on February the 3rd in 2013. There are some traditional practices to be done on the occasion. One of the popular practices is to eat a sushi roll. Then we have to take big bites of a whole roll silently. Rolled sushi is usually served in small pieces. However, rolled sushi is not cut in pieces especially on Setsubun. This is in hopes that we will never cut good relationships and we will be involved with good luck. South-southeast is the auspicious direction in 2013. So people bite into a sushi roll facing the direction.
Some big temples in Tokyo such as Sensoji temple and Zojozi temple will hold a special Setsubun event on this day. If you are in Tokyo, why not go and see it?