What Julian had just offered was a deal in which Vicente would provide his services as a blacksmith in exchange for high-quality materials.
If the Kenyth Empire received items to fight the monsters, that would be a form of payment for Vicente's services. By fighting the monsters in the north of the southern region, Julian's group would be directly helping the Fuller family's forces to deal with fewer monsters than they would have without an agreement.
"Vicente will certainly agree with this proposal, Mr. Bond. He's traveling for the time being, so let's work out how much the Fuller family will be paid for producing the artifacts you want. When he returns, we can sign the contract and start producing your weapons and armor."
Julian sighed along with his companions, relieved to see these people would not make things difficult just because they were on the side that came to ask for an agreement.