Lesson.

Shi Lang heard the old man exclaim as the latter sealed his acupoints to stop the bleeding. The bullet was specially covered with array patterns that gave it higher penetration power. This was why the bullet injured the old man. Otherwise, the physique of an Immortal King was not something that Shi Lang could have injured with a projectile weapon. 

The terran replied calmly and indifferently, "Who I am is none of your concern, but what you should know is that if you did not leave here. I will give you all an unforgettable lesson on how a dignified, righteous family should act." 

The voice was not loud, but it was audible to everyone. The scream earlier had stopped the battle. The young man was frightened by the sudden attack on his backer. The old man heard the tone, and he frowned. It would have been fine if Shi Lang had competed in terms of strength, but the mention of righteousness gave him second thoughts.