Although, when it comes to wounds, Zhou Tian, who was directly stabbed head-on by his opponent, definitely suffered much more than the scratch injury caused by that Domain powerhouse. However, Zhou Tian's wound from the head-on attack was something he could recover from with his own abilities. In contrast, even if the injury that Domain powerhouse received was minor, without the appropriate methods, he would not easily recover from the wound caused by Zhou Tian's Demonic Slaying Weapon.
So, it may have looked like Zhou Tian was at a disadvantage at the time, but in actuality, he did not lose out at all in the brief exchange with that Domain powerhouse.
The Domain powerhouse, being an assassin, was also well aware of the situation and would not entangle with Zhou Tian unnecessarily. Seeing that his attack had not been very effective, he did not hesitate and immediately retreated into the shadows.