izumi sai, jingai kyoshitsu no ningen girai kyoshi, highres, official art, 1girl, :d, ^ ^, beret, blue dress, blue hair, blue hat, blue ribbon, blush, breasts, character name, clenched hands, closed eyes, collared dress, dated, dress, hands up, happy birthday, hat, large breasts, long hair, long sidelocks, mermaid, minazuki kyoka, monster girl, open mouth, polka dot, polka dot background, puffy short sleeves, puffy sleeves, ribbon, short sleeves, sidelocks, smile, solo, standing, upper body, wavy hair