I've gotten to where you need to equip the Purity Magatama to enter the miasma, but it simply refuses to let me equip it. Just won't do anything. Name is greyed out, it won't even tell me why it won't let me equip it. I've tried remaking it but that did nothing. Did I miss a step or is this simply a glitch?

Chiana wrote: Name is greyed out?

Most likely, it's one of these two:

Not above the min level requirement (13)

or

You don't have enough free chakra (needs 19)

Most likely the latter, I'm guessing.

I think you're right about the chakra. In that case, how do I remove a Magatama?

Chiana wrote:I think you're right about the chakra. In that case, how do I remove a Magatama?

Click a magatama and select "remove" or select another one.

You can't do this in a dungeon, though.

Excellent, that worked. Thank you!

No problem :)