1girl, alternate costume, black serafuku, black shirt, blue hair, blue neckerchief, blue sailor collar, blush, bow, box, closed mouth, gift, goat horns, gradient eyes, hands up, head tilt, heart, heart-shaped box, holding, horns, long hair, long sleeves, looking at viewer, multicolored eyes, neckerchief, purple eyes, red bow, red ribbon, ribbon, sailor collar, school uniform, serafuku, shirt, simple background, solo, sparkle, upper body, valentine, very long hair, white background