Shinobu appears in official media as a member of the guild Diabolos. She features black horns, short purple hair with crossed bangs and hair between her eyes, red eyes, and a mole under her right eye. She has small breasts. Her primary outfit is a torn purple frilled dress, sleeveless, paired with a single purple elbow glove, a single detached purple sleeve, black pantyhose, and a collar. Alternate outfits appear in themed variations including Halloween, pirate, real world, and summer, formally recognized by distinct naming conventions. Before the events of the main storyline, she was known as Kamiki Shinobu in the real-world setting, a name that remains associated with her identity outside the primary narrative context.