User blog comment:Omega natsu2/Chapter 375: The Supernatural, Predictions./@comment-83.255.207.11-20140313153509/@comment-7418318-20140313210131

The problem with Precht is that he completely abandoned the light side and willingly delved deeply into the dark.

Mira is using Demons, which is something I consider dark, and has her occasional dark moment (like the punishment game) so she's a given.

And with Jellal I have the feeling that he'd be willing to commit further sins, if it's to get to his goal. "What do a few more sins matter against what is already on my conscious?" is probably something he'd think.