The Strongest Tribe, Launching of Biochemical Weapons

"Since you Sunils believe that the Subterranean Mutants are a blight, you have to pay the respective price to resolve it." Han Xiao waggled his finger. "Let me remind you, strictly speaking, these Subterranean Mutants are now technically our captives and war loot. If you want me to abandon the war loot, you must at least pay me the equivalent price."

He had long suspected that the Sunils would not be able to pay more, which allowed him to use this as a form of rejection.

Now that they had already decided on migrating the mutants, it would be impossible to change the plan to slaughtering them, otherwise it would be equivalent to deceiving Feidin. The pretty boy raised by the Goddess of Fortune would be frustrated and angered, and his Favorability would decrease.

Furthermore, going back on his word would also affect the image of the Black Star Army in the hearts of the players.