When Qin Yun saw that the woman was unable to dodge Hou Yi's arrow, he knew that she was doomed!
Out of Hou Yi's nine successive arrows, the first arrow was the weakest, but that was because he was accumulating strength! Even Qin Yun had to ignite his Essence Soul to withstand Hou Yi's ninth arrow.
"Similar force?" Qin Yun thought. "Hou Yi has long made it public that the power he figured out is something known as Heart Force. It's a different, special strength that's independent from physical or Dharmic powers. However, just grasping the basics is extremely difficult."
Qin Yun's time was precious. He felt that he did not even have enough time to cultivate his Sword Dao; therefore, he naturally did not waste time cultivating "Heart Force" which was extremely difficult to grasp.
Heart Force was a entirely different system separate from physical and Essence Soul Dharmic powers.