/jp/ - Otaku Culture

Someone clear this up for me: Is Miko an actual immortal?
I was under the impression she is, like she died and been reborn into it. She's as immortal as Celestials, or Hourai drinkers.
There's also the case of Futo who I guess is immortal but apparently not in the same way. More akin to a Lich (No physical body, soul is stored in a plate)

Seiga on the other hand is still a "hermit" afaik. She cheated death by faking it, and thus isn't actually immortal and can be killed.
IDK how well all this tracks but that was the gist of what I understood.