There is no better way to put that than that. If you have any constructive suggestions, let me know.”Curse of the Sin Eater” indeed catches attention and can be descriptive in varied ways. Some options:
Folklore/Mythology: Sin Eater is a character characteristic of certain folklore. Usually, such a person would symbolsay for dinner, the food which belongs to the dead, who is already deceased. His the dead would be left at peace, without any remaining sins. If such reproductive sickness can be considered a curse, then it is curse of a Sin Eater, a burden of sorts, a trauma of instinct. Perhaps, they carry all the sins they wrap over himself/herself instead.
Fantasy or Horror: “Curse of the Sin Eater” is a picture, a book, a video game title, truly any piece of art in which fact, fiction and horror are mixed, and one contains fantasy elements. There may be a cold story of a Sin Eater protagonist, gripped by a curse after performing the job. Or it can be other worldly fantasy world occupied by Sin Eaters whose might is laudable yet their fate is sealed.
Religious or Moral Theme: Like many other cases taking on the role of a Sin Eater and curse could dosimile1914. So the whole principle of a Sin Eater and the corresponding curse may be seen in those terms, the unenviable things that one takes over while performing these roles.
Computer or Table-top Games Role Play: Alternatively, it could be an element of a Tabletop RPG (role-playing game), or some game character where players could take a cursed part of absorbing other’s sinners.