User blog comment:Iron.Shadow.Dragon/Nine Demon Gates Match-up Predictions/@comment-5303512-20131012152446/@comment-5303512-20131012200906

Srry, was busy,

The reason, why would Grimoire Heart continue to follow Zeref after what he did to Hades?

I think this would turn into a would, it sounds like it, and Oracion Seis seems to have changed their ways, at least Cobra, Hoteyes (maybe Angel, Racer). Cobra said that he is going to save the rest of Oracion Seis, and "the Gates of the Netherworld are about to open so don't mess with his memories".