Their relationship makes me think of the fox and the frog.... or mouse or rat. Whatever. My dad told me this story as a child and it apparently stuck with me.
A mouse needs to get across a stream, but can't because it isn't stong enough to swim across. A fox offers to taxi it across, saying that it is a nice fox and won't eat the mouse. The mouse climbs on the fox and rides it, but as the water gets deeper, the fox encourages the mouse to go further forward/higher. The mouse ends up on the tip of the fox's nose and he eats it.
The
Mouse and the Fox is the closest thing I can find to this fable, but I know there is another story that mirrors the situation. In a nutshell *rim shot* the mouse looked to gain (abundant food=life) form his relationship with the fox, but was consumed and destroyed by it.
When Haruto was getting All Dragon the White Wizard warned him to NOT LET Dragon consume him. Haruto responded with something like, "You better tell him, he'll become my snack."
Does that sound like a true partnership?
Haruto is using Dragon for power and I think Dragon is biding his time, waiting for Haruto to get to the tip of his nose.
Maybe they wont go there, but it seems like a very natural direction.
BTW... upon further research I found
this
Dragon IS a Phantom. They are evil as far as we know.