I myself played alot of quests, thinking about the game i think we should have our fav chaos knight help our main hero. Story goes like this.
Your hero and Mr chaos get split from their group into battle or what ever situation you like and fights a magical boss. Boss thinking inorder to kill you and chaos he makes a portal around the chaos knight that meant to take chaos miles away from hero and breaking the link which will kill you and chaos knight. But unknowing the link is more stronger then the boss thought and both hero and chaos knight go together into the desert(or what ever location). The hero gets poisoned by the effects of the magical portal (negtive effects which meant to only move the chaos knight and not the hero), and yep you guess it a simple cure won't do, poor chaos will have to go through the desert trying to find a place to save the hero (or what ever location and person). The hero goes weaker and Chaos fearing for his own death tries hard to keep you alive with positive feed back such comments as "Seeing you die would make me happy but not now so keep awake or i kick you", "Come on you can do it i er promise i won't kill innocents...much" alas making a bonding clip part of the game. Of course you will greet more comrades and do many quests. YES it does sound like a soap opera but thats whats role playing games all about(except ff8 and above where it felt more like your watching a soap opera then playing it). its and idea and has many flaws i admit.