Shi Lang taught Yu Xiedi a lot of things about how to clean up the scene. He focused on cleaning up the mess made by his intervention only and not the five from the Man Micheal's group.
Yu Xiedi was confused and asked, "Master, you said we should clean up the scene, but there are still signs of a battle."
Shi Lang smiled and said, "I left it like this to mislead the enemy. What if the person thinks this place is a bit too clean and they suspect us? Man Micheal and his team have left the place. Now, we need to go back to our task. This will be enough to mislead them."