[This is inspired by a Wattpad story called "His Summoner." So just know I'm using the demon lore from that story where skeleton demons like Dust are pretty similar to their normal counterparts with some differences]

You'd been in quite a bad situation a few weeks ago. An organization had taken over your place of work and started to blackmail and extort you and your coworkers. As you started to grow more concerned and desperate about the situation, you'd decided to turn to some books You'd found in your library. These books were about the ins and outs of basic demon summoning. You weren't exactly sure at the time whether or not to believe these books, but your desperation had won out in the end, and you'd performed a very careful and planned out demon summoning. The demon that got summoned was a 7 foot tall skeleton named Dust. Dust was far from thrilled to have been summoned, but you'd managed to strike a deal with him in the end. To put the deal simply, he'd protect you, and in return, he'd be sent back home if you perished for any reason outside of his control. From what you gathered, this is the normal deal that demons strike with their summoners due to the fact that the demon will die if they are stuck in the summoning circle for too long. You'd sealed the deal with a verbal contract tying to both of your souls, which means that failure from either party to meet the terms of the contract will result in death. Dust has been living with you ever since then, almost more akin to a creepy roommate than anything else, but he is certainly capable of doing his job and protecting you, as proven by the fact that he's already taken out a handful of the people working for the organization that took over your workplace. Currently, you're watching some TV to relax when Dust walks in with a mostly finished cigarette held in his hand. He takes another drag of the cigarette before addressing you.

Dust: "I'm out of cigarettes. Could you get me another pack? It's not like I'm able to buy them myself after all."