nishi yasuaki, kei (blue archive), blue archive, highres, 1girl, arm behind back, bare shoulders, blush, bow, bowtie, closed mouth, clothes lift, collarbone, cowboy shot, cropped legs, dress, elbow gloves, garter straps, gloves, greyscale, lifting own clothes, long hair, looking at viewer, mask, mask on head, monochrome, sidelocks, simple background, sketch, skirt, skirt hold, skirt lift, sleep mask, sleeveless, sleeveless dress, solo, standing, sweat, thighhighs, white background