On September 12 of the same year, while Shinsengumi was on guard, eight retainers of Tosa clan led by Kichigoro FUJISAKI and Sukegoro MIYAGAWA appeared at Sanjo-ohashi Nishizume and moved as if to pull out the noticeboard.
新選組が警護に当たっていたところ、同年9月12日、藤崎吉五郎と宮川助五郎を中心とした土佐藩士8名が三条大橋西詰に出現、制札を引き抜く動きを見せた。