The terrifying strength displayed by Lin Zimu clearly exceeded Kong Xiu's expectations.
His expression turned grave, and he stared intently at his opponent.
However, Lin Zimu gave him no chance to react.
His figure instantly faded, vanishing into the Void.
Kong Xiu raised his eyebrows and swiftly flickered his figure, also vanishing into the Void.
Yang Yan and the others could only watch as the figures of the two continued battling in another plane.
Curiously, it's as if they were ordinary swordsmen in the mortal realm, their Longswords clashing endlessly without any Sword Qi appearing.
Yang Yan naturally understood that both were considered Sword Dao Grandmaster-level figures; although there was no Sword Qi or Spiritual Power flowing, the duel was extremely perilous.
Their Will, cultivation level, and Rules were all infused into their Longswords.
If struck by those Longswords, even with Yang Yan's current True Immortal physique, he would likely be severely injured.
