It was a day of unseasonable snow and poor visibility, so the samurai attendants were dressed in raincoats and had covers attached to the hilts of their swords, which was advantageous for the attackers.
当日は季節外れの雪で視界は悪く、護衛の供侍たちは雨合羽を羽織り、刀の柄に袋をかけていたので、襲撃側には有利な状況だった。