Strongly resembling her alternate-color counterpart in Blizzaria, she is a pale-skinned Yo-kai with bright purple eyes who floats in the air. She has long dark purple hair with indigo tips, pulled into a ponytail with a black Glacial Clip. She wears a black robe with gray snow print on the bottom edges and a dark pink band that goes around the waist with a bow on the back. Her toed sandals are black with raspberry-hued straps.
Damona apparently traded her ability to feel emotions in order to gain the power she has. Even after being released from the Crank-a-kai where she was imprisoned, she commands the player to become friends with her.
However, in Yo-kai Watch 3, it is revealed that she merely pretends to lack emotions, first dropping the act when she was eating tasty food and believed that no one was watching.
In the anime, Damona is usually sharp-tongued, high-handed and usually gave other people bad nicknames, like Poofessor in the Recap Time corner, but will immediately drop them when looking and eating tasty food, similar to how she was portrayed in Yo-kai Watch 3.
Oni King is her father. At first, she doesn't really care for him but when the Oni King has Inaho and USApyon pretend to be shady people and the Oni King comes and tries to "protect" her, she becomes somewhat protective of him, as when Inaho battles him she attempts to use her Soultimate on Inaho and Usapyon.
Damona has a combination of Ice and Dark powers, using her dark powers to curse her opponents and lower their stats. Her Soultimate in Japanese is "Tokimeki Hyakiyakou", a time when evil spirits roam the earth. Her Cursed Skin ability gives her an All-Stats-Up boost when under the effect of an enemy inspirit.