This one's very disappointing. The premise had me intrigued, but there's no actual story to this fic. It's essentially just a vehicle to cast Marona and Castille in a live-in sexual relationship with each other, which is very out-of-character for the two girls.

Indeed, everyone in the fic is violently out-of-character in general, such that its impossible to see this as the cast from the main game, or even as versions of them from a fourth alternate universe.

Ah well. It would have been too much to hope that every Phantom Brave fanfic would be a winner.