Taking Heads

Melt the materials down into raw material, then work it into a sword.

Normally, when one says "materials" here, that means metal and nothing else.

"...It's trickier to make than I expected. It's hard enough to unify the properties of all these different metals. And now we've added the treasures of each race on top of that."

Several materials besides metal were needed to make the third sword.

From things with a gelatinous form to things like smoke contained in glass bottles.

"Even if I make a sword like this, its form is so unstable..."

There was definitely a blueprint.

A nearly perfect blueprint for making the third sword, Sun, though he had no idea who had created it.

But the problem was that if he made it according to the blueprint, the sword's form vanished almost immediately.

He still hadn't figured out what principle was at work...