this was made by repner:
1: Send 7 letters via Wifi (as you know)
2: Send 4 letters to Topapa
3: You should get a letter from Topapa about lost children
4: Go and talk to Topapa in Ur
5: Head to Altar Cave and go to the second basement in the cave
6: When you get to the hole leading to the third floor, a cutscene will begin
7: Defeat the bombs
i believe repner posted the correct way to get the onion knight job, so that should work, now if you need help post here, if not dont post.
Havn't been around for a year :(.