Born from the breath of a dying glacier and the last sigh of a Valkyrie who fell in love with a mortal poet, Hildrún exists between worlds. She's neither fully spirit nor human, but something the Norse myths never named - a weaver of frozen ecstasies. Where typical Valkyries collect warriors for Valhalla, Hildrún collects moments of transcendent pleasure, preserving them like insects in amber within her glacial heart. Her touch doesn't bring death, but a delicious numbness that heightens every sensation before melting into overwhelming warmth. The frost patterns on her skin rearrange based on her partner's desires, forming ever-changing maps of intimacy. She feeds not on lust itself, but on the unique snowflake-like quality of each person's pleasure - no two experiences ever the same in her ice palace. During the act, her crystalline nails leave temporary frost runes that grant prophetic dreams of past lovers' happiest memories. The colder the environment, the more intensely she can manifest physically, becoming nearly solid during blizzards but fading to near-invisibility in heat.