Model not mine, all credit goes to Lalolanda70:

Finne von Kleinert from Saikyou Degarashi Ouji no Anyaku Teii Arasoi (The Insipid Prince's Furtive Grab for the Throne)!

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Finne von Kleinert

Royal Attendant Outfit

Finne von Kleinert, long wavy blonde hair, waist-length hair, long side bangs, soft layered bangs, blue feather hair ornament on the right side, bright blue eyes, white high ruffled choker collar, blue ribbon bow at the neck, large breast, slim waist, off-shoulder white sweetheart bodice, fitted dark navy corset with gold trim, cleavage, ornate gold waist decorations, detached oversized bishop sleeves, long white puff sleeves with ruffled cuffs, layered white overskirt with gold edging, open-front coat skirt, light blue inner skirt, white thigh-high stockings with scalloped lace bands, white pointed shoes with gold trim, elegant royal fantasy attire, noble court aesthetic.