Hakushaku to Yousei Koibito wa Yuurei

The tabloids are full of rumors of scandals surrounding Edgar, but Lydia is insistent that she doesn’t care. Their engagement was nothing more than a temporary measure to get out of her agreement to forsake the human world for that of the fairies, after all, and to leave behind the wild and unpredictable kelpie. Edgar, however, seems to be taking it much more seriously—as seriously as a man like him can, anyway. But with the arrival of the latest story, in which he has allegedly found himself a lover in the form of a ghost, things start to unfold in a very unexpected way. (Source: J-Novel Club)