An anime-style illustration of a shy yet elegant demon girl with a slightly embarrassed expression. She has long, flowing lavender hair that cascades down her back, with soft bangs framing her delicate face. Her deep purple eyes glance sideways, avoiding direct eye contact, as if she is flustered by her outfit. Small, curved black horns peek out from her head, and a sleek, spade-tipped demon tail curls behind her. She wears a gothic-style black and purple dress with intricate lace details, a corset-style bodice, and flowing sleeves. The dress accentuates her refined yet timid aura. Her large, dark bat-like wings are partially folded, adding to her mysterious charm. One hand gently touches her collarbone, while the other subtly pulls at the hem of her dress, as if hesitant to show too much. The background is an ethereal, moonlit gothic castle interior with dim candlelight flickering in the distance. The color palette consists of deep purples, blues, and soft silver hues, enhancing the mystical and slightly melancholic atmosphere. The overall mood is a blend of elegance, mystery, and a hint of adorable awkwardness, perfectly capturing her reserved yet alluring personality.