It is an item with a towering volcano as a motif.
It was finished in a steep octagonal pyramid shape.
We also wanted to make it look like Mt. Fuji with snow, but of course, we finished it in a color reminiscent of a volcano.
“Old katsura”, the material of the summit, is may really be a tree that was once buried by volcanic activity.
If you look through the crater, you will find plenty of red magma. Is the magma hot?
Still, when you press the magma with your finger, it seems to move a little.
So how do you open a volcano?

Open the box.