ryuusei (mark ii), amamiya (sakusei byoutou), sakusei byoutou, commentary request, highres, 1girl, anger vein, ass, backless dress, backless outfit, black dress, black pantyhose, breasts, brown hair, chair, coat, cup, dress, frown, halterneck, holding, holding cup, lab coat, large breasts, medium hair, office chair, open mouth, pantyhose, purple eyes, rolling eyes, shaded face, short dress, sitting, sleeves past fingers, sleeves past wrists, smile, sweat, sweater, sweater dress, swivel chair, trembling, turtleneck, turtleneck dress, white coat