Luke Fon Fabre started life in the normal way - two parents born of nobility, engaged to a princess, with a private tutor to teach him swordsmanship while he was locked away in his manor in Baticul every waking moment of the day. Also, the Amnesia. Okay, so Luke's life was never normal, but one day a girl showed up which started him down a chain of events leading to the knowledge of the facts that not only was he a Seventh Fonist and one of the only beings on the planet able to create a Hyperresonance by himself, but he was also Replica. A Fomicry-created clone of another being whose life he had unwittingly stolen. From that point on, he resolved to change himself and become worthy of being 'Luke'. His final acts to do this was the liberation of the energy being Lorelei, allowing the flow of Fonons to return to its natural state.

In the DL, Luke brings formidable prowess to his duels with his array of hard-hitting attacks, in various different flavors of elements. While his ability to create a Hyperressonance will never see use in the DL, he has the Jewel of Lorelei, a unique accessory only he can equip which allows him to regenerate health rapidly.