Kon-tan is a young fox vixen with blonde hair, ears with darker tips and purple inside, and a tail with the same tip. She has pale blonde fur, round eyebrows, eyes with light blue sclera, pink irises, and seems to wear a bit of mascara. Her outfit includes a pink kimono like dress with light pink frills, held by an pale blue-green obi with gold rimming and a small heart in the center, and pink ballet flat shoes. Kon-tan is usually seen winking, as evidenced by a small star on her left.
Kon-tan has the ability to read people's minds and learn about their ulterior motives.
In Yo-kai Kon-tan, Kon-tan made her debut where she was found by Nate. Nate summons Jibanyan to deal with Kon-tan. Jibanyan becomes Mr. Crabbycat to stop predicting what Kon-tan can do to Next Harmony Meow, but she is already predictable. Kon-tan attempts to get Next Harmony Meow to not like Jibanyan, but her plan was foiled and she runs away crying, giving up her Medal to Nate.
The name "Kon-tan" is a wordplay on kontan (魂胆, "scheme, plot, ulterior motive") and kon, onomatopoeia for a fox's bark and Kan'on reading for kitsune (Japanese: 狐,kitsune); the latter with the -tan honorific, a more informal and childish form of -chan.