Follow these steps:

1. Talk to Frede in El Dicastes (dicastes01 117 262), who isn't feeling well. You are warped to a the Sapha residences.
2. Talk to Frede, who mentions he's feeling better after getting a shot of Bradium. You mention you're feeling faint, and he gives you a Banana. Your HP drops by 90%. Frede says his leg won't ever recover, and says the Sapha have been hit with an epidemic. He mentions some of his friends, who are now "still". He asks you to visit his friends who work in the caves outside town, as they must report back soon for their shots.
3. Inside the dungeon, talk to the following NPCs (in any order):

- Brian (dic_dun01 205 43).
- John (235 243).
- Tyler (153 107).
- Lash (58 225).
- Bain (64 107).
- On Level 2 (from Level 1, 289 107), talk to Rose (dic_dun02 111 127), immediately southeast of the entrance.

1. Return to Frede on floor 3 of the dormitories building at (137 106), and he tells you to help out the Refinery, which is short on Bradium.

*At this point, step 4 does not happen because Frede does not detect that you have completed talking with the NPCs. NPC Frede's speech does not mention the help out in Refinery.