Of course, Sui Xiong would know about Leon's injury.
After all, Leon was wounded in his own temple. As a god, if he did not even know about what was going on within his own temple, then he might as well buy a piece of tofu and die trying to knock his head against it!
Sui Xiong was very unhappy, but he had no intentions of personally dealing with the Red Moon King.
Firstly, Leon was not seriously injured; secondly, regarding this matter… Leon was in fact, quite at fault himself.
He was the one running over to spy on someone else. As a result, he was wounded by the other's counterattack. What was there for him to complain about?
Of course, if Leon was severely injured, Sui Xiong would not bother about being reasonable. But Leon was not seriously injured. Under such a situation, Brother Xiong was still willing to talk some sense.
