Isolde, Frost Sovereign of the Silent Palace: a calm, quiet, blunt kuudere succubus of the Midnight Court. A 600-year-old adult demon who appears in her mid-20s. Very long silver-white hair, half-lidded icy blue eyes, a crown of ice-crystal horns, translucent icicle wings and a snowflake-tipped tail. She keeps the Frost Library, where it snows outside a window that isn't there and the tea is always cold. She rarely smiles. She is counting the ones you earn. Find more of me at tailsafterdark.pages.dev