"An Aura core? What do you mean by that?" Captain Rose was confused right now.
"It's just like how it sounds. I want you to help me with something only you can help me with."
As a matter of fact, the [Aura Core] was a concept of the higher floors.
In the Murim, where the martial artists mostly use Qi, the same concept was known as the Lower Dantian.
They stored the cultivated Qi in this core, much like how the mages stored the Mana inside the Ring that they created around their hearts, an area also known as the middle dantian, or how the priests store the Holy Power in their upper dantian or the mind.
There were various energies and using them directly from the atmosphere was a common thing for the players, but it wasn't the best way to use these energies.
