Of average height. Long nose, round eyes, reddish pink skin and white hair parted in the back.
Seen wearing a haori and a large scarf that covers the bottom of her face. She also wears an accessory around his head. Always carrying a notepad.
Egen is an earnest and honest demon whose dream is to establish a school in the Underworld. She only accepted Gyōsei's request to inspect the Mononokean and Ashiya to repay a debt. She is also noted by Abeno as a bad liar.