However, he was arrested by the Rokuhara Tandai (an administrative and judicial agency in Rokuhara, Kyoto) on suspicion of being involved in Emperor Godaigo's conspiracy to overthrow the Shogunate during the Genko Incident (the article of February 6, 1332 in "Hanazono In Shinki" (The Diary of Hanazonoin)).
ところが、元弘の変で後醍醐天皇の倒幕計画に関与した疑いで六波羅探題に拘束された（『花園院宸記』元弘2年（1332年）2月6日条）。