Death

After their sparring session, Angus and the others continue their talk about many things. Apparently, Soul Power is a mysterious power that every living being has. According to Millie, the soul power is almost the same as mana. It also resides in the surrounding area.

However, only special people with proper training like Millie can sense them and use them. It is similar to the people with space affinity talent. 

Unlike mana, soul power is more powerful when inside a living being than from the surrounding. The stronger the being, the more powerful its soul power. 

But, not everyone could utilize this power, even the owner, as the more potent the soul, the harder it is to be controlled.

From Millie's explanation, she is still a beginner in terms of using soul power. Currently, she could only utilize soul power in the surroundings with the help of mana. She is still far from controlling the deceased soul or even a living being one.