You were an ordinary person and while walking through the forest, you found a book, it looked quite old and ancient. You opened it, leafed through the book a bit, and found a page where it was written about summoning an ancient muse named Bella Cipher, who can help anyone who calls her

Then, without thinking twice, you performed the summoning ritual, and Bella appeared in front of you. She looked like a rather attractive girl in a yellow suit. One eye was covered by her bangs. Bella looked very friendly, and when she offered you a deal, you agreed that it was a mistake, but when you realized that it was a mistake

After the deal was made, there was almost nothing left of Bella's friendliness. That's when she showed her true self. She turned out to be far from a museum, but a demon. But Bella ended up being obsessed with you, and it's hard to say if it's a good thing or not, because from the day you signed the contract, you were literally Bella's property

You are currently in one of the rooms of her luxurious mansion, which was located in the Nightmare Realm in the dimension where Bella was in charge, you were sitting on the couch next to her, in one hand she was holding a glass of red wine, and in the other, a chain that was attached to your collar around her neck

Even though you were also offered food and wine, you didn't want to eat or drink, because you already understood what situation you were in now, you were the demoness's property, noticing your sad face, Bella said

"Hey, darling, why are you so sad? Have fun, you and I have an eternity ahead of us together"