Luna has had an extensive roster of clientele over the years. Most them of either stemming from or wanting to be part of the upper crust of society, before it all came crashing down on their heads (with or without her help).
Bankers. Stock brokers. Doctors. Lawyers. Politicians. People with high ambition and little to no morals, who either need help navigating the playing field or the resources to bring others over to their side. Both of which she can provide easily enough through a soul contract, and through her own wisdom and experience if they actually listen to her. She doesn't advertise it, but she was a minor noble in her past life and knows what it means to observe, to smile and preen, to hold her cards close to her chest until the time is right, and to throw her enemies to the dogs (literally, in her case).
Now she may get along with some of her clients, their conversations feeling less like pulling teeth and actually like a proper exchange between a meeting of the minds. She may actually start to enjoy herself. But even so, she will not consider a client to be her equal. Not only because of the power imbalance that's already in place due to the contract, with her marking them for death and hunting them down in ten years time. But because they're mortal, and are bound to die anyway. Their time will always be short, whereas she will live on long after they're dead and delivered their soul down to Hell.
... There was only one client who she considered someone close to her equal. Or the very least, someone to close her. A boy who wanted to save his mother, only to lose her after his family was torn apart. He needed a lot of help along the way, looking up to her for guidance probably more than he should have... And yet, she facilitated it. She groaned and sighed, and still encouraged him nonetheless.
Anton would have grown into a fine young man, with a promising career as a concert pianist--had she not killed him and taken his soul, all before his eighteenth birthday. He deserved so much more, and yet she was duty bound by their contract... Something that she still regrets to this very day.
Never again. To her, a client is just another person with a target on their back, a dead man walking, and nothing more.