Ah, shady dealings... A steady, reliable source of income for mages all over Fiore. One might be liable to think these only applied for Dark Mages and their ilk, but alas, one would be grossly mistaken. Even Light mages get called on for jobs which are still legal - if somewhat borderline - when their client's greed speaks higher than any desire for safety, and drives them to deal with merchants most law abiding citizens would otherwise wanting nothing to do with. The best solution to this issue is exactly what it said on this request: Go in the client's place, make the transaction, then come back.
Commerce by proxy.
And how did Alisa knew it to be a shady, borderline legal kind of deal? Not only was the request specific about the client not trusting the other party, but also requested this job be done under the cloak of night. How suspicious... Is what she'd say if she was a Rune Knight, yet Alisa didn't really care much for rules and regulations. She'd taken this job just like most she so often did, on the way home from somewhere else, usually a random path she picked for her jogging route. For a place of law and order, Era was notoriously short on Light mage job requests, which she naturally attributed to it's orderly culture and deeply rooted presence of the Rune Knights. They probably left very little work for guild freelancers like herself.
Thankfully, the Knights were hardly willing to do just about anything, and even they occasionally outsourced a few jobs to freelancers, so she successfully met and accepted a request from a client without much trouble
"Take this map.", said the client that morning, handing her a rolled up piece of paper, "I don't trust this guy, so need someone to meet him in my place. Be there at midnight, give him this money, and bring back the package he gives you. Be careful, I have no idea what that guy is capable of!"
Hardly a difficult request, and the client himself didn't look seedy either; quite the opposite, he looked as honest as man of his profession possibly could. But that didn't change the fact that this sculptress would be dealing with a disrepuable merchant who may or may not try to steal from her. For this reason, she stayed away from the whites and flashy clothes, and instead picked an outfit dark and grim as the criminally inclined buyer she'd pretend to be, with jet black jeans and shirt, blending in with the night's darkness. Alisa even avoided the makeup or jewelry she often carried on her, and went as far as carrying large aviator sunglasses in her pocket. Not so she could wear them at night and look cheesy, but rather so she could slip them on when the time came and keep her identity a secret, something expectable of a women pretending to be in her position. Hell, that merchant could easily turn suspicious if she didn't!