According to some researchers including Shigeru MIZUKI, yokai cartoonist, 'Heiroku is a yokai which brandishes a Kotobure paper (a piece of paper with a handwritten message), claiming it an oracle, and spreads false rumors to confuse people.'
妖怪漫画家・水木しげるらは、「事触れの紙を振りかざし、ご神託と称してデマを流し、人々を混乱に陥れる妖怪」としている。