Spoiler (click to show/hide):
CR of 16, Seiran Priestess roll is 2,4,5,6=17
Rolling for Kitsune to see if any corruption is converted, must beat CR. Roll is 5,3,3,2=13, no. Anna loses 4 corruption.
Seiran gains the temporary Hook Purification Addict- For the next week, your character will have a strong desire to use her magic to try and purify others, whether they want it or not. It can be resisted but if you give in enough you may gain it as an actual hook.
This time, you both cum, though for a long moment it almost seems as if time stops for you both as an intense warmth and feeling of light rushes through you. For Anna, strangely this light doesn't seem to cause your own foxy corruption to recoil or shriek in agony- in fact, your corruption seems to enjoy the warmth, your mind forming an image of a beautiful, glowing angel that radiates light softly rubbing her hands over you as you sit in her lap and work to banish the taint of Ithys from you as the invading force it is.
Seiran of course as well sees a similar image, albeit with her being the glowing angel holding Anna, but regardless of the strange vision you both have a long, drawn out climax that leaves you both exhausted and drained.