Only after hacking them into a bloody, mangled mess with blood splattering everywhere—a truly horrific sight to behold—did he finally earn Chu Ying's approval.
At that point, the three of them were completely reduced to Chu Ying's accomplices.
After discussing how to handle Duan Yong's corpse and various follow-up matters with them, Chu Ying and Cao Yutang broached the subject of cooperation.
Chapter 251