, is Kuyuandan a medicinal pill or..."Others also pricked up their ears.Just now, Qu Huai deliberately mentioned Ku Yuan Dan but did not explain it.It sounds like a kind of elixir that can be compared...ge fluctuation rippled out."Sword Formation!"Elder Mei blurted out, her heart filled with even greater trepidation.A myriad of swords transformed into a sword formation, only the most elite sword cult...