C562 Demon Slayer Beam

The power of Yin was the power of the soul.

It was exactly the same as Bing Ling's ability to use the power of the soul.

Once it was used up too much, it would not do any good to the ghost.

In the end, it might even weaken the soul to the point where it could not be possessed.

That was why the ghost didn't use any of the most powerful methods. The more powerful the methods were