1girl, arknights, arm_up, armband, bad_pixiv_id, bare_shoulders, black_dress, breasts, cleavage, dress, horns, infection_monitor_(arknights), large_breasts, long_hair, looking_at_viewer, metaru, one_eye_closed, purple_eyes, red_hair, sleeveless, sleeveless_dress, solo, surtr_(arknights), upper_body, very_long_hair