Take the broken pendant to the Legendary Smith in Northwestern Saronia - a woman with gray hair. In his fourth letter, Takka writes about a Legendary Smith who can fix things to look brand new.

Take the pendant to Takka the smith in Kazus, who says he can't fix it. Visit Sara in Sasune East Tower, and pick up her broken pendant. In her last letter, Princess Sara writes that she need someone to fix her pendant. In the iOS, PC and PSP versions, Refia and Ingus must be the team leaders in order to receive letters from Takka the smith and Princess Sara, respectively. In order to differentiate between these three jobs, the 3D versions of the game limit the Sage's MP, and reduce the amount of weapon types the Ninja can use. Onion Knight can use all magic, wield all weapons, and equip any armor in the game. The Onion Knight is a blend of the Sage and the Ninja from the NES version. You will receieve the job crystal for Onion Knight from the children afterwards. Head to Altar Cave and fend off the Bombs attacking the children. He will ask you to rescue the children of the village, who went missing in the Altar Cave. After you get Topapa's fourth letter, go speak with him in person, back in Ur. If you don't have four letters from Topapa, try defeating more monsters to fill in the Bestiary. Place Luneth at the front of your party, and talk to the Moogles in town to receieve all four letters from Topapa. Once you have completed 25% of the bestiary, you are eligible to unlock the Onion Knight job through the Mognet. 4 letters from Topapa (in Ur) to Luneth or Arc.There are three quest chains to complete. In the PC and PSP versions of the game, letters are automatically unlocked after certain milestones, and with certain characters as the leader of the party. Additionally, specific heroes must be the party leader in order to receive some letters. The Mognet becomes available only after saving the Fire Crystal. As in the DS version, only one letter per hour can be exchanged with characters. In the iOS version of the game there is no wireless capability, therefore the requirements are different. No more than one letter per hour can be received from the characters. In the DS version of the game, the player exchanges letters with other players using the wireless connection of the Nintendo DS. In the last letter the writers ask the Heroes to accomplish a task. In-game characters use the Mognet to send a series of 4-5 letters to the Heroes. In the original version, Moogles only lived in Doga's Manor. These cute white creatures can be met in almost every town in the 3D remakes. The Mognet is a mail service managed by Moogles. You can unlock three side quests that will reward you with the ultimate job, the ultimate weapon, and the ultimate dungeon. The Mognet is a feature of the 3D remakes of Final Fantasy 3.

Final fantasy iii psp job guide