C2063 Yeh Mann's Descent(3)
You could say that anyone with a sound mind would go to any lengths to eliminate their enemies. Chen Ping didn't think so. When he reached the outer realms, he found that the enemies of the Immortals weren't lacking in intelligence. In fact, suggesting they were would be the greatest insult to the Immortals.
Given these reasons, Chen Ping saw no value in collaborating with Yeh Mann
