1girl, breasts, comic, cowboy_shot, curtains, desk, dress_shirt, empty_eyes, hands_in_pockets, jacket, jacket_partially_removed, koyuki_(kotatsu358), large_breasts, long_hair, long_sleeves, open_clothes, open_jacket, open_mouth, original, plaid, plaid_skirt, shirt, skirt, solo, tsundere, window