Joshi KOKUSHI, together with another general Shojo Shataku, continued to put up resistance in a critical fort and joined his forces with an anti-Tang Baekje general, Fukushin Fuyo (Fukushin Kishitsu), at Fukushin's foothold Suru-jo Castle.
黒歯常之は別将の沙宅相如とともに険峻な要害の地によって抵抗を続け、同じく唐に抵抗する百済の将軍、扶余福信（鬼室福信）の拠る周留城に軍を率いて合流した。