Defining the genre

I can’t think of a better summary of a major genre of anime and manga than this:

She is a princess of loving mischief!
He is a dull boy who is not at all lucky!
They are really close couple
though they have a lot of problems.

This comes from the front cover of the groundbreaking new manga series きつねのよめいり, featuring the fresh imagination and original story-telling of newcomer Sato Takagi.

Naaah, just kidding. I’m sure it delivers exactly what it promised on the cover (seen here on Amazon). The title, and perhaps a few tiny nuggets of the story, are based on classic folk tales about trickster-fox brides, but I’d be stunned if it rose above genre clichés.