I'm guessing that Hikaru is starting to break down and lose her magic because Michiru's pure love for her (the source of the "eternity" she needs to survive) is beginning to waver. His doubts spell the end of her. That's why she's working so hard to keep him in her cage.guess the angel is slowly self-destructing due to her corrupted mentality going astray from her natural/deity origins. we might see the whole series end with the angel becoming human, physically and mentally, still supportive of the MC, and the other angels able to restore humanity.
Probably dead nglWhere's God?
I am guessing that she is becoming a fallen angel/ demon, in the kiss moment we saw when the shadows was around herI'm guessing that Hikaru is starting to break down and lose her magic because Michiru's pure love for her (the source of the "eternity" she needs to survive) is beginning to waver. His doubts spell the end of her. That's why she's working so hard to keep him in her cage.