"This [Gate] is to travel the highest possible distance and its actual name is [Spatial Gate] that can connect two points in space.
Though it would require a large amount of energy just to get out of this great forest, it would be complicated in itself.
A special layer of natural energy covers the whole great forest, and that is the reason demonic corruption doesn't happen here.
That energy interferes with space magic and that's the reason normal communication or teleportation magic doesn't work here.
But this gate is special, just like this separate space and this unique tower.
The gate is on the first floor of the tower, but there are conditions for one to pass through it.
You have to have sufficient mental strength, physical strength, and enough energy to start the process.
Though it is easy to come here through this gate without those conditions, getting out is an arduous task.
You are surprisingly strong for your age, but you are still weak.