The Problem
As the situation was still the same before, Ban no longer held himself as he asked the System about it.
"System, what's happening?"
After a short moment of silence, the System finally replied to him with the use of the blue screen that appeared in front of him.
[ Host, as what the System said before, the matter regarding your spine injury was very urgent and was crucial for your development.
That broken spine was actually connected to your Energy Core, that has the same nature as the Monster and Beast Core.
Just like the Monsters and Beast, the Summoner will need to nourish this Core along with their body to advance to the next rank.
To strengthen this Energy Core, the Summoner can only do so with a few and select methods.