Chen Mu did indeed want to measure his current strength against Elder Yu, for showcasing his abilities in front of Yu Jiujiang wasn't much of a concern. However, Yu Jiujiang was now in the twilight years of his life, barely maintaining the circulation of his Five Viscera. Whenever he exerted even a bit of his Gang Qi, his own Qi-Blood would deplete correspondingly. It was truly not suitable for him to spar with others, hence Chen Mu could only regretfully rein in his thoughts.