According to legend, Shigenori began shooting at 6 o'clock in the evening on May 30 and finished at noon the next day, with about six hours remaining and with his energy still left.
この時は5月1日の時刻日本（午後6時）から始め、翌日正午、残り約6時間となったところで余力を残して打ち切ったと伝わる。