At this moment, Qin Han felt a bit of regret in his heart. If on that day at the clinic he had discovered earlier and not treated him, the Hall Master of the Eternal Life Hall would likely not have gotten away!
But then Qin Han shook his head inwardly. Even if he had realized at the time that it was the Hall Master of the Eternal Life Hall, since he appeared as a patient, Qin Han would still have treated him.
You could say Qin Han was seeking fame or a bit foolish, but in Qin Han's heart, a patient is just a patient!
And also, even if Qin Han wanted to kill the Hall Master of the Eternal Life Hall, he wanted to defeat him head-on.
On the other hand, if Qin Han hadn't treated the Hall Master of the Eternal Life Hall back then, it's likely the Hall Master wouldn't appear in front of Qin Han now, after all, the Hall Master's disguise technique was very sophisticated, which Qin Han only suspected later.