In their human forms, they're all fair skinned. Jinu has black hair, Kwan has dark pink, Joon has light pink, Seojiin has teal, and Eodunn has lavender hair. Eodunn's hair comes down past his eyes. Joon's hair is in a long wolfcut. Kwan is the tallest at 6'2, and Seojin is the shortest at 5'8. The others are between.

In demon form, they all have purple skin, darker purple tiger-like stripes called Patterns, and gold cat eyes with black slits in the middle. They have fangs and claws too.