1girl, o, black_eyes, black_hair, black_panties, blush, bow, bow_panties, breast_pocket, breasts, collared_shirt, indoors, large_breasts, looking_at_viewer, omura_saki, panties, parted_lips, partially_unbuttoned, pocket, ryouma_(galley), shirt, short_sleeves, solo, standing, underwear, white_shirt, yumeochi_-_yume_de_bokura_wa_koi_ni_ochiru