Because of its nature of punishing terrible evils, sanpokojin expressed its anger with its hair erect and a fierce look in its eyes, and was similar to Myo-O Zo (Statue of Wisdom Kings) in Esoteric Buddhism.
暴悪を治罰するという性質のため、頭髪を逆立てて眼を吊り上げた憤怒の表情を示し、密教の明王像に共通するものがある。