1girl, ahoge, arknights, asymmetrical_legwear, bad_pixiv_id, blush, bra, clutching_clothes, coat, collarbone, exhibitionism, green_eyes, grey_hair, hair_ornament, hallway, hood, hooded_coat, jokebag, lens_(arknights), medium_hair, open_clothes, open_coat, panties, public_indecency, running, scene_(arknights), side_ponytail, solo, sweatdrop, underwear