Ruler versus wildfire, twin binding repairs the ghost story system. But the truth is that they are not saviors, they are just leeks waiting to be cut - then let order and chaos perish together, tear the closed loop apart,
The system uses 'balance' as a shackle to forge the twins into the sharpest swords - the scabbard is order and the blade is chaos. When they discovered that the ultimate purpose of the knife was to cut oneself, they chose to aim the handle of the knife at the 'heart' that created everything.
Concept: Imperfect balance