Chapter 221: Platinum-Level Skills Available for Exchange?

Sterl had no idea that by casually attending an array study session, he would end up turning several deities into mortal enemies of the Demon Lord!
After quickly teleporting back to his manor and seeing that everything around him was calm, he finally breathed a sigh of relief.
Immediately, Sterl used up his allocation points, which had just cooled down.
He thought about it. Since his plan involved studying formations in preparation for a class change, which would likely require...