kamei, shiraishi kotone, seito kaichou hikaru, game asset, large variant set, non-web source, official art, self-datamine, variant set, 1girl, :o, belt, blush, breasts, brown eyes, formal clothes, hand on own hip, large breasts, long hair, long sleeves, miniskirt, mole, mole under mouth, necktie, nose blush, open mouth, pantyhose, pencil skirt, purple hair, side slit, simple background, skirt, skirt suit, solo, suit, tachi-e, teacher, transparent background, vest, yellow eyes