1girl, black_hair, black_pantyhose, black_vest, chair, formal, green_eyes, green_skirt, hair_ribbon, hayakawa_tazuna, index_finger_raised, indoors, long_hair, long_sleeves, looking_at_viewer, looking_back, no_headwear, open_mouth, pantyhose, pencil_skirt, ribbon, shirt, sitting, skirt, skirt_suit, smile, solo, split_ponytail, suit, tussy, umamusume, vest, white_shirt, yellow_ribbon