1girl, absurdres, black_thighhighs, blue_eyes, closed_mouth, hand_on_own_hip, highres, hitman_(seo_kouji), holding, long_hair, long_sleeves, looking_at_viewer, miniskirt, nib_pen_(object), official_art, pen, plaid_clothes, plaid_skirt, pleated_skirt, red_hair, red_skirt, ribbed_sweater, seo_kouji, simple_background, skirt, smile, solo, standing, straight_hair, sweater, takanashi_tsubasa_(hitman), thighhighs, very_long_hair, white_background, white_sweater, zettai_ryouiki