Kuroe

Like the others said, I think she is actually a phoenix and not a "cursed eagle". I'd be surprised if she doesn't turn out to be a pheonix because there seems to be a lot of clues suggesting she is one with how her hair turned from blonde to a bright red, she has extremely powerful healing abilities, when she died she regressed back to when she was younger which is kinda similar to how a pheonix comes back to life as a young bird after death, and the eagle clan's healing abilities were said to originate from an ancient clan (which my theory is most likely the ancient clan is a phoenix clan or something like that). Also pheonixes from mythologies are said to grow stronger/more powerful after death so it also makes sense why her current powers is stronger compared to before she died.

I can see it now, all his current and eventual future avatars will all probably become different races or key figures of various factions/nations throughout the other world lmao