C1451 Stoichiometric Tolerance

"Speak, when are you going to let us go?" After cursing for a while, Xiao Batian felt a lot better. However, he still clasped his hands behind his back and didn't give Xiao Zifeng any face.

Xiao Zifeng gritted his teeth, and hesitated to let Xiao Batian and the others go.

"What, you're still preparing to keep us trapped in your Hidden Sound City?" Seeing Xiao Zifeng not replying