In the Magic Kingdom, Devils are the immortals who are known for making contacts with humans for the price of their souls. A contact that can grant anything the person wants. But Devils much often hate their rivals Celestial Angels who are known for being the powerful and holy creatures living in the Moonlight Sanctuary. But what if the great Devil and Celestial Angel crossed path and happens to bound a strong connection with each other until it cost their own life? Are they willing to give up heaven and step back the throne of hell for the sake of their forbidden freedom?