C292 Unforeseen

An idea suddenly popped up in Xuan Chen's mind, but he immediately shook his head and dismissed the unrealistic idea. His eyes lit up as he thought of a possibility — — Yin Yang Sword Seal.

Although the formation was mysterious, when compared to the Yin Yang Sword Seal, the difference was countless levels. Therefore, without being able to detect the Yin Yang Sword Seal