He will ask you to speak to his fellow Minister [Akram Minister] Mairard in Adventurer's Plains. Mairard will ask you a question.
After answering the question correctly go to [Akram Minister] Luce in Kenji Beach. Luce will also ask you a question.
After you gained all 3 documents go back to [Ferrell Guild Merchant] Mildun in Junon Polis.
He will ask you to hide the evidence in the Goblin Cave (B1) and kill the Coal Mine Goblin Worker. This can take some time.
5067,5289 | 5159,5058 | 5395,5173
Return without the certificates to [Ferrell Guild Merchant] Mildun in City of Junon Polis.
There you go, you’ve just earned the Drive Cart Skill.
-END OF QUEST-
I hope it helps you start the fun!
iRose CodeZero TEAM