Ye Fan, who had arrived at the scene early, had been in an invisible state, waiting for the opportunity to kill the two strongest Upper Ninjas—a Mysterious Level Initial Tier and a Mysterious Level Medium Tier Martial Artist. Even if their overall strength was slightly inferior, they were still very formidable.
Had Ye Fan faced off against the two of them head-on, he would have suffered a great loss, which is why he chose to use the Invisibility Technique, lurking nearby, waiting for the right moment to strike. Then, by using his trump card, the Bloodthirsty Sword, he ambushed and killed the two experts instantly. To be honest, if it had been a direct confrontation, even using the Bloodthirsty Sword, Ye Fan wasn't confident he could defeat the two Upper Ninjas. One must know that a Martial Artist who reached the Profound Level was very powerful and had extremely quick reflexes.