blue snow
The alter ego of Kajou Ayame from Shimoneta to Iu Gainen ga Sonzai Shinai Taikutsu na Sekai.
When acting as this persona, she wears panties on her head either as headwear or as a a mask, and a loose-fitting and free flowing bed sheet over her shoulders. She is typically depicted as being otherwise naked underneath. She is also usually shown as being barefoot and without legwear.