This is typical of the stories told about capturing castles, and similar stories exist about Nobuhide ODA's capture of Nagoya-jo Castle and Tsunehisa AMAGO's capture of Gassantoda-jo Castle, although how much is true remains unknown.
典型的な城盗りの物語で、似たような話は織田信秀の那古野城奪取、尼子経久の月山富田城奪取にもあり、どこまで真実か分らない。