The seven-person wedding is 1) a prince, 2) a king, 3) a queen, 4) a sheild-maid, 5) a wine-merchant, 6) a dragon, and 7) a fire elemental (and the Goddess, of course!) The canon relationships, before the wedding which is the very last scene, are 1/2, 3/4, 2/4, 1/7, 3/5, and 4/6; it will be so much fun to see how that shakes out in a group marriage...

It's a really amazing series, set in an of-course-everybody's-bi-and-poly fantasy universe. I should loan it to you someday!