1. One of the head hunters believe that Rhue = Midian.
(possible that the head hunter's friend = the head hunter Slade killed.)
2. "Rhue" killed Jeruh with Gaius.
3. Headhunter in EP1 thinks Rhue is Jeruh so it is possible that "Rhue" killed Midian before Jeruh which switched his personality.
4. The Phantom Slasher calls him an anomaly (Mimic or Venge?)
5. The word Aubuta is mentioned when "Rhue" jumps over a wall and destroys lots of Blood Lyn. (Could this be "Rhue's" name?).
6. Woman with red hair states that "Rhue" is always changing. (Could have to do with Rhue not liking mirrors because he doesn't see himself, he probably sees other peoples faces and why the Head Hunter thinks he is Midian.)
7. "Rhue" fights an aura in the pits that was probably the sword's aura (forgot the name of sword).
8. Jeruh probably got the sword from Kava or Kura where Kura could have been killed by Aubuta. (Not so sure bout this one though cause Kava Kura thing happened generations ago).
9. In the cutscene where Jeruh is killed by "Rhue" his sword disappears. (Sword's aura could have been absorbed? Phantom Slasher? or Arctura? Personally I believe it is Phantom Slasher that was absorbed because "Rhue" brought justice to a killer : Landorin Masacre.)
10. "Rhue's" sword becomes corrupt and generates the personality of Jeruh.
11. Gaius remembers "Rhue" from killing Jeruh.
12. Traziun caused the sword remorse by killing himself = innocent person possibly (Illuminati? or Shadow Sword as Gaius states?) Everyone else "Rhue" killed = bad or did something bad (Lexus = bad for using Rhue to learn about Cetsa.)
13. "Rhue" has a compulsive behavior to attack Shadow Swords (sword under Lide or w/e it was called lol, Ghost Horror that Lyrra used.) which could indicate that the sword is Illuminati. But then again we have a choice to choose what kind of aura the sword uses either Shadow or Illuminati which mean the sword could be both.
14. "Rhue" remembers Landorin stretch (This one got me stumped).
Added: Jopaga gives an explanation of Auras (Rhue's sword seems to match the description of being able to obtain pieces of certain auras hence Arctura and the Phantom Slasher.)
More notes to come hopefully. Let me know what you all think XD.