In the Nara and Heian periods this event was held on July 15 every year as an official service, and in the Kamakura Period onwards, it was held in tandem with a segaki service.
奈良時代、平安時代には毎年7月15日に公事として行なわれ、鎌倉時代からは「施餓鬼」（せがきえ）をあわせ行なった。