Unlocking Gong Cha in 'Final Fantasy' is one of those hidden gems that makes the game even more rewarding. I stumbled upon it during my third playthrough when I was experimenting with different character combinations. You need to complete a side quest in the Dravanian Hinterlands, where you help a group of NPCs gather rare ingredients. After finishing their requests, they'll mention a mysterious potion master—that's your cue. Head to the coordinates (X:12, Y:14) near the Forgotten Springs, and you'll find Gong Cha brewing something wild. The dialogue options here are crucial; pick the ones that show curiosity but not greed, or she'll vanish. It's a neat little secret that adds depth to the lore.
What I love about Gong Cha is how she ties into the game's alchemy system. Once unlocked, she offers unique buffs that aren't available anywhere else, like temporary stat boosts or rare crafting materials. It’s worth the effort, especially if you’re into min-maxing your party. Just don’t rush it—the quest chain feels more organic if you explore naturally rather than grinding for it. Plus, her backstory is oddly touching for a side character.