Legion-7.

The 8 small faces of the beast's gem-like head are usually dull in contrast to the light of the entire entity's body. But one of the small 8 faces is lit up with a tiny almost inconspicuous spot of light. Legion-7 didn't do anything about the light when it appeared. First, he consumed the remnants of Soverick's existence including the false law of order within it. Then he began to evolve thanks to help from Helios. 

It was after it woke up that it decided to do something about the light. The main face transferred some of its energy into that small face so it began to glow brighter. What was in the small face became visible. The tiny light within it turned out to be a fragment of a soul. It is the soul of a battle sage monkey.