Mana Armor

I continue reading the book, there are several interesting parts, although it only describes things from my humanoid form, but there are things that even I didn't know about my body.

After finishing the book, my master took me to a reinforced place, it seems the word "rest" doesn't exist in the master's vocabulary, since I'm training in sequence without any break.

"Master, why this reinforced room? Am I going to do something dangerous?" I don't doubt it, after all the master knows how to put me in problematic situations.

"It won't be that dangerous, in this room you will gain knowledge, I will stamp it on your face and engrave it on your body, after all as the Demon King you have to have a lot of knowledge about as many elements as possible."

"First, I'm going to teach you how to use [Mana Armor] if you had learned that, you wouldn't get naked so easily."