Well. I guess that's that's a pretty good question.

[ Ajax considers before answering. ] normally the Narukami Shrine does the ritual every sixty years, but it's been put on hold for quite some time now because the ancient book with the purifying process was damaged by some paper-eating insects. [ sounds kinda like a bad joke. ] So until they put all that back together again or someone special with an aura that allows them the natural capability to lift the seals to complete the cleansing ritual, I do maintenance work.

[ his proud demeanor deflates a little now, his brow furrowing. ] It's not enough, though... the tree has been absorbing too much too fast lately... there's more miasma than before these days. Eventually, if something isn't done, I'll be unable to keep it below the threshold. So there will be more trouble for Inazuma's people.