t-track, t-track (artist), original, bad id, bad pixiv id, 1girl, aqua eyes, black thighhighs, blush, bra, breasts, brown hair, cleavage, diagonal-striped clothes, diagonal-striped necktie, female focus, large breasts, lingerie, long sleeves, necktie, panties, pleated skirt, side-tie panties, skirt, sleeves past wrists, solo, square-end necktie, striped necktie, sweater, thighhighs, underwear, undressing, white bra, white panties