C443 Martial Skills Upgrading Middle Level Ancient Martial Arts

"What is this kid doing, why did his attack suddenly become so strong!?"

Su Rou asked softly, feeling the numbness in her body.

However, Jiang Yuan had no follow-up to this attack because a system notification sound suddenly rang out in his mind.

"Ding … …" Host has automatically changed techniques. The upgrade of the martial skill was successful