Gangleri told you about the Fire Temple and asked you to help the Cinder Spirits with a matter regarding their mistress. Bulagan and Piyama told you that you'd encounter Chalice Guard Denlavis inside the Fire Temple. You were able to vanquish Chalice Guard Denlavis and obtain the goblet that held Agnita prisoner. You brought the goblet to Piyama so that Agnita could be released.