[Mireksan Mountain: Outside Of The Sunlit King's Boss Room]
The situation of total understanding bewildered the demonic monsters.
Demonic energy
The energy that corrupts and changes those who interact with and consume it.
Its power lies beyond understanding, but the key to how demonic energy works is this: if one can contain its exposure within their inner being, it'll make them stronger. Demonic energy consumes mana and converts it into its energy.
Of course, there are exceptions.
Because the being that had recovered and erased that slash has yet to change.
"It's disgusting how you creatures are made."
Rel took a step forward, holding Axel outwards to his right side.
"I've made my mistakes, but this one might be the worst."
CRACK...CRACK...CRACK!!!