I Traded Three Demons for the Strongest One

After overhearing her three contracted demons mocking her and longing for her sister, Evelyn Ashbourne trades them away for Morgus, a supposedly cold, desireless raven demon. But Morgus is anything but indifferent. As Evelyn escapes a forced marriage, seizes control of her family, and leaves her betrayers behind, she discovers the most feared demon of the Abyss has been searching for her all along.