Chests (5):

• Potion
• Cure
• 500 Gil
• Antarctic Wind
• Eye Drops

1. After defeated Djinn, you'll be transported to a crystal room, watch a scene, then you'll get a bunch of new jobs.
2. Now you are in front of Alter Cave again, bring Princess Sara back to the Castle Sasune and watch another scene. Congratulations, you've lifted the curse for everyone. 
3. Exit the castle, go back to your airship (at Sealed Cave), then fly to Kazus town.

1. Go inside INN and talk to Cid. He will ask you to bring him back to Canaan, which is your next destination.
2. Go inside Takka House and talk to him to trigger another show. He will help you upgrade your airship so that you can break a rock blocking your way to Canaan.
3. Go inside Mythril Mines for more loots.

Chests: (2):

• Mythril Sword (x2)