According to the "Nintokugi" (Chronicle of Emperor Nintoku), he exterminated a double faced specter called 'Ryomensukuna,' who did not swear his allegiance to the Imperial family.また、「仁徳紀」には天皇家に従わない飛騨国の怪物両面宿儺を退治したともある。Wikipedia日英京都関連文書対訳コーパス