straitjacket, 1girl, monochrome, greyscale, hat, solo, gag, gagged, necktie, long hair, ball gag, beret, dated, uniform, sweat, looking at viewer, blush, crossed arms, bdsm, bound, wiffle gag, upper body, white background, long sleeves, simple background, bondage, shirt, signature, military, military uniform, collared shirt, sweater, sweatdrop, saliva, swept bangs, wing collar, cropped torso