C617 Increase!

"Do we still need that thing?" Yeh Yingran frowned slightly.

"We need a conductor, right? It has to be a filter. After all, the attributes of the Holy Sun Stone and the Holy Thunder Stone are different from Yeh Yulin's!"

"Even if they are the same kind of flame, there are still thousands of them!" Twilight looked at Yeh Yueyan.

"Forget about the other levels