When the Soul-Attracting Incense burned out, Bai Ziyue didn't hesitate and a large amount of spiritual power poured in immediately.
In an instant, the hundreds of Yin Souls within the Soul-Gathering Banner began to devour each other frantically.
The Soul Bodies of these Yin Souls were relatively strong. After about ten ghosts devoured each other, the one left would not be weaker than the two Main Souls beside Bai Ziyue.
Thus, at this point, Bai Ziyue would usually make a slight gesture, summoning the Yin Soul to make it one of the Main Souls of the Soul-Gathering Banner.
Soon, there were twelve Main Souls around Bai Ziyue.
