If Qi Jiuyi hadn't acted generous and attacked Qin Mu and Zhe Huali at the same time, he would have smoothly defeated Zhe Huali and not landed in such a state.
Qin Mu and Zhe Huali knew that his great divine art was astonishing, so when he attacked them, they had first heavily injured him. Qi Jiuyi then became their side dish while they were the only ones fighting for real. The eight thousand flying swords and countless knives were like pattering rain as they collided again and again.
Qi Jiuyi was located in the center of the battlefield, so he was always surrounded by Qin Mu's sword lights and Zhe Huali's knife lights. The moment he got ready to burst forth, he suffered attacks from the two people at the same time. This kind of situation was something he had never expected.