Continental War?

Mira pushed open the Grey Door inside the Gates of Purgatory, and just like the other times, she blacked out, her consciousness returning to her mind. 

Suddenly, Mira opened her eyes, then slumped over as if she were made of jelly!

"What the…! What happened? Why do I feel so weak?" Mira muttered, feeling incomparably weak. Fortunately, it was just her physical body that was weak.

However, she did feel strangely more connected to the earth. 

"...What's going on?" 

The Guardian chimed in once again to help her out, "The door you just opened was the Hell of Weakness."

"Hell of Weakness?" Mira questioned.