Hadn't realized that we can plug our fanfics here. Huh. Well, where else if not here, right?
Ferio-focused fic! Takes place before the events of the first half of the series, manga-based:
Title: Elder Sister
Author: Bearit
Summary: A study on Ferio's relationship with his sister, and what drove him to pursue the Escudo.
http://www.fanfiction.net/s/4657462/1/Elder_Sister
Yay plugging...