In April 1702, Kuranosuke OISHI let his wife Riku OISHI and other family members go back to her parent home in Toyooka Domain in Tajima Province and then, in Kyoto, he began to be so involved in amusing himself that he forgot every thing else.
元禄15年（1702年）4月、大石内蔵助は、妻大石りくたちを但馬国豊岡藩の実家に帰らせると、京都で遊び呆け始める。