Soba is filled with wishes to live a long life
because it can stretch out very long.
Let's Live a Long Life with Long Soba
From around the middle of the Edo period, it became customary in the city of Edo to eat soba on the last day of every month and on Setsubun. That led to the present-day custom of eating toshikoshi soba on New Year's Eve. It can be easily eaten during the busy night of New Year's Eve with wishes for a long and fulfilling life.