As a matter of fact, Kurobei ONO did not run away but stayed at Itaya Ridge in Yamagata Prefecture as a leader of the second troop to catch Kira in case Oishi was unsuccessful, since they thought he would be escaping to Yonezawa Domain.
大野九郎兵衛は実は逃げたわけではなく、大石が失敗した時に備えた第二陣の大将であり、米沢藩へ逃げ込むであろう吉良を待ちうけて山形県の板谷峠に潜伏していた。