Walkthrough ( video )
2. Do Scholar Wu a favor and find Pharmacist Mu Mu for the Azure Pill, which is made from 1 Ratling Eye, 3 Ratling Meat and 2 Herb Packs.
3. Kill the Fire Rat and you will have a chance to get 1 Ratling Eye and 3 Ratling Meat in your inventory. Then Bian Qing will give you 2 Herb Packs.
4. Give all the materials to Pharmacist Mu Mu and he will return you the Azure Pill.
5. Bring the Azure Pill to Scholar Wu and get an Ultra Badge so you can swap it for a reward from your trainer (the one who can promote you) in Job Center.