About your Siel's Supreme Aethercannon... Restoring it will take some work.

It will also require some quality materials.

If you truly care about the weapon--a weapon to which you entrust your life!--then you'll procure those materials for me.

You've heard of Nox Ingot. It's what I need to fix this mess you've made.

You haven't heard of it? The special ore created when Lady Siel and that horrible Tiamat faced each other in battle, lo, those many years ago?

Well, Honeus has some. He might share if you do him a favor.

Foolish Elyos.

Oh. You again.

Honeus isn't that unreasonable. Go get his Nox Ingot and keep that aethercannon in your Cube for me.

Finally! Now I can get to work.

Wait a moment...

Ah-hah! It's a work of staggering genius. Go on, try out your new aethercannon.

1. Bring the Aethercannon Resoration Materials to Gefeios.

   Siel's Supreme Aethercannon, Nox Ingot

Restore your Siel's Supreme Aethercannon with Gefeios and a Nox Ingot.

Gefeios said he could restore your Siel's Supreme Aethercannon if you brought him some materials. Namely, a Nox Ingot.

You went to Honeus and received one in return for a favor. When you brought the ingot back to Gefeios, he restored your Aethercannon into its true form: Noble Siel's Supreme Aethercannon.