Head for the sage’s residence in Yulyana Woods and a familiar scene will unfold–that is, until the sage reveals he’s aware of the gang’s predicament. Next, he will ask Agnes to bring her most trusted ally with her to the depths of the Vestment Cave–after some thought, it’s Tiz who Agnes awards this honor.
When you’re ready, travel to the entrance of Vestment Cave; beyond, Ringabel and Edea will leave the party and you can’t exit the cave. You’d be wise to save before entering the cave, in case you run into any trouble.
Sage Yulyana will be waiting at the very end of the cave, where you battled the cave dragon near the beginning of the game. Approach the sage and he will discuss his wealth of knowledge to the duo, which includes a warning about misusing the crystals.
Annoyingly though, despite revealing much, the sage seems to be holding back some of his knowledge still. Regardless, our heroes got what they came here for–the repaired vestal garb–so it’s time to continue our (second) journey to awaken the crystals.