If you are within the half-plane, you can expand the area of this plane through repeated casting of spells. Alternatively, you can increase the duration of the plane created by your last spell through repeated casting.
The half-plane grows once every 24 hours.
If a certain part of the half-plane breaks down, each divided segment is considered an independent half-plane under your control. You can also cast anew to create a new connecting area to reconnect separated regions.
In the void.
Shawn expanded the space of this half-plane to a diameter of about one hundred meters through repeated casting.
"Next is setting the operating laws of the plane."
