Gu Zhen Ren
And suddenly all make sense. Why did Fang Yuan decides to follows the Strength Path despite quite a few drawbacks (yes he got the all-out-effort gu, but refining it will be annoying), and why was he slaughtering so many people those last dozens chapters. And what exactly was so important about the inheritance. Now it's time to see what will go wrong and how he will manage that.