Lu Xuan became capable of a lot of things that he had not been able to do before breaking into the Celestial Realm.
That included extending his spirit and will into the ring.
While he had the Black Tortoise's Protection back in his past life, he hardly knew much regarding its secrets.
That ring had been one of the last resorts the Dragon relied on to keep himself alive back then, and there were few throughout the world capable of cornering the Dragon to such an extent. As such, there were few who actually knew much about the ring.
The ring reacted right away when Lu Xuan extended his Spiritual Qi into the ring, which continued to emanate a faint glow.
He was able to learn more about the ring's true nature through those reactions alone.
The ring was a piece meant for protection and defense.
Imbuing it with ample Spiritual Qi would yield a spell, which was called the "Black Tortoise's Protection."
