The metal piece was circular, emitting a soft golden halo all over.
This was a trigger-type defensive Soul Tool. Placed against the chest, it would automatically conform to the Soul Master's body, absorb the Soul Master's soul power to become one with them, and activate simply upon the injection of soul power.
A burst of golden light covered the surface of Tang Xiaolei's body, yet a hint of regret appeared in his eyes.
Chapter 319