User blog comment:JoAlter/Izanami-no-Mikoto/@comment-32751919-20190322124919

She could be a very challenging boss to fight, isn't she?

So, in the story, she was summoned by Yorokobe as a last resort to taking down the remaining Chaldea. Unlike King Hassan, while he is "Angel of Death", Izanami is "The Death" herself. I think her boss fight would be some kind of "Impossible Boss Battle" as she will revive herself with unremoveable guts buff and you either kill her in an amount of requirement or just wait until the number of required turns. (because you can't kill the thing that already death)