1boy, 1girl, adjusting_another's_hair, bad_twitter_id, bare_shoulders, black_eyes, black_hair, blue_eyes, blush, brother_and_sister, camisole, collared_shirt, dark_background, eye_reflection, hand_on_another's_face, honjou_ruri, honjou_satoru, honnryou_hanaru, looking_at_viewer, original, parted_lips, reflection, shirt, siblings, sketch, sweat, upper_body