I would have been around when she was first sealed if the timeline of your story is correct, though. It's nice to hear of a priest-magician being open to both in that way.

[That pretty much settles it, Kurama thinks, since every youkai knows about Reikai where he comes from. They tend to heavily stick their noses in Makai's business.]

If you haven't heard of Reikai, then we very likely are from different universes after all. They make themselves very prominent in inter-realm affairs.