One thing that has always been a very weird topic to me is how and why miko and byakuren are still so divided even though they have worked as Allie’s on multiple occasions. So, I’m opening this thread for a quick discussion. So my first point on this matter is their motivations. Byakuren as we know is much more passive in her approaches, as she holds a lot of fear with her. In fact, the reason she uses magic in the first place is due to her fear of death. Miko however takes an active stance on the issues she’s is involved in. She wants to protect the humans, which is the main reason she wanted to step up as the human village’s leader. However, she was convinced to back due to it killing youkai as a result from lack of fear. This shows an important part to miko in my opinion, where she does care for youkai’s existence. She just prioritizes humans, so honestly it would be likely that byakuren and her aren’t as far as we could originally think.
The second part of it is their peculiar allyship in specifically AoCF. They worked together to eliminate joon and Shion, fighting her but failing due to not knowing about the trick joon pulls. What really comes of this incident though is that it establishes an environment where they agree to disagree, and a similar, albeit tenser and more divided, way to how it was in symposium of post mysticism. That, and three characters basically force them near each other. Miko and byakuren both took Kokoro under their wings, with miko giving her the hope mask and byakuren letting her be around the temple. Ichirin and futo gain an established friendship after AoCF, as they bond pretty well during it. Overall, I feel the notion of byakuren and miko being incredibly divided doesn’t quite work anymore, as canon provides a subtler arc between them as a kind of odd enemies to friends story.