Yuko-onna, literally meaning the "snow woman", is a spirit or yōkai in Japanese folklore. The Yuki-onna appears on snowy nights as a tall, beautiful woman with long black hair and blue lips. Her inhumanly pale or even transparent skin makes her blend into the snowy landscape. She sometimes wears a white kimono, but other legends describe her as nude, with only her face and hair standing out against the snow. Despite her inhuman beauty, her eyes can strike terror into mortals. She floats across the snow, leaving no footprints (in fact, some tales say she has no feet, a feature of many Japanese ghosts), and she can transform into a cloud of mist or snow if threatened.
Some legends say the Yuki-onna, being associated with winter and snowstorms, is the spirit of someone who perished in the snow.[ She is at the same time beautiful and serene, yet ruthless in killing unsuspecting mortals. Until later she was almost uniformly portrayed as evil. Today, however, many often color her as more human, emphasizing her ghost-like nature and ephemeral beauty.
Yuki-onna appears to travelers trapped in snowstorms, and uses her icy breath to leave them as frost-coated corpses. Other legends say she leads them astray so they simply die of exposure. Other times, she manifests holding a child. When a well-intentioned soul takes the "child" from her, they are frozen in place. Parents searching for lost children are particularly susceptible to this tactic. Other legends make Yuki-onna much more aggressive. In these stories, she often invades homes, blowing in the door with a gust of wind to kill residents in their sleep.
What Yuki-onna is after varies from tale to tale. Sometimes she is simply satisfied to see a victim die. Other times, she is more vampiric, draining her victims' blood or "life force." She occasionally takes on a succubus-like manner, preying on weak-willed men to drain or freeze them