It is said that a nun in the audience who heard the news quickly made a rice cake coated with soybean flour and sesame for the last meal of Nichiren and served him because she had no time to make sweetened red bean paste.
急を聞いた桟敷の尼が、なにか最後のご供養をと考えたが、急であったため餡をつくる時間が無く、きな粉と胡麻をまぶして牡丹餅を作り日蓮に献上したという。