Quote Originally Posted by Ryllharu View Post
The only reason I can think of for her ena eroding is that she's a sacrifice to the sea god. She has to drown, like the original bride/sacrifice for it to count.
And she took five years to drown for what reason? If that was the only reason why it's happening, it would have happened a long time ago. It can't be a coincidence Miuna gained her ena and Manaka is now drowning, at the same time. Though I don't really know why it's happening at all, aside from what I said: Uroko (Sea god) does whatever they want, following simple whims.