When the Chinese around the world ushered in the year of rabbit on 3 February this year, the Japanese were celebrating 節分 setsubun, which means the change of season. Though theoretically there are 4 節分s in a year, but only the one which signify the change from winter to spring is celebrated every year.At the end of February, supermarkets started to sell beans.Beans (豆 mame) play an important