Gong Buyu gazed in astonishment at the sword she had swung. Beneath the sword's radiance, there were no peculiar phenomena or manifestations of power, only a decisive killing stroke stripped of all complexity.
This sword seemed to be forged solely for killing, melding the remaining mana and Divine Sense in Gong Buyu's body into a deadly weapon. With this sword alone, one could glimpse a slight understanding of the profound meaning of the Dao's ultimate simplicity and the qi-training middle stage green flood dragon had no power to resist, surrendering its head immediately.
More importantly, Gong Buyu clearly sensed that this was a sword her master had swung through her body, and the mana and Divine Sense it contained all came from herself.
At her peak, Gong Buyu was confident she could easily slay the green flood dragon, but now she was drained. The fact that Shen Yuan could still swing this sword without harming her essential nature exceeded her understanding.