Final Fantasy X-2/Chapter 3/Bevelle

Before Traveling to Besaid and Kilika
If you gave the stolen sphere from Kilika to New Yevon in Chapter 2, then Bevelle will become a Hotspot during Chapter 3. If you sided with the Youth League, you will not be allowed to enter the Temple. Visit either way to view a scene in which members of New Yevon argue with each other outside the temple doors. If you gave the sphere to New Yevon, return and enter the temple.

Head down the lift to the Bevelle Core and through the maze to the area in which Bahamut was fought in the previous chapter. Here you should find Pacce. Speak with him. He asks if you agree with him about warning the Youth League. Pick either option, it does not matter, and Pacce will hand over the Blood of the Beast Garment Grid.