mame, boku no himitsu taiken, game cg, variant set, 1990s (style), 1girl, :d, ^ ^, bare shoulders, black background, bow, breasts, cleavage, closed eyes, collarbone, curtained hair, dress, hair bow, hand on own chest, large breasts, long hair, looking at viewer, low twintails, nipples, nonaka yoshiko (boku no himitsu taiken), nude, open mouth, parted bangs, pink bow, pink dress, purple hair, retro artstyle, simple background, smile, solo, tachi-e, tareme, teeth, twintails, upper body, upper teeth only, very long hair