1girl, arknights, bad_pixiv_id, black_shorts, blue_hair, braid, braided_ponytail, coat, cup, dragon_girl, dragon_horns, elbow_gloves, feet_out_of_frame, gloves, grey_eyes, grin, holding, holding_cup, horns, legs, ling_(arknights), necktie, nuesawa_kyo, open_mouth, pointy_ears, shirt, shorts, sidelocks, single_braid, sitting, slit_pupils, smile, solo, thigh_strap, twitter_username, white_coat, white_shirt, yellow_necktie