Secret Realm, a special space that is a little similar to a dungeon.
While dungeons' existence are all because of beings called 'Dungeon Master', Secret Realms are born naturally because of a special phenomenon called 'Spatial Collapse'.
Also, while anyone with strength can enter dungeons, Secret Realms have their own restrictions.
There are Secret Realms that only people within the age limit can enter.
There are even Secret Realms that only allow entry to those below certain levels.
That is the reason why Kris is having such a hard time right now.
Hearing her mention a secret realm, Alex nodded in understanding.
"Oh, so that's why. Then, what kind of help do you need from me? Can't you enter it because of some restrictions?"
With a sheepish smile, Kris said, "Well, I can enter the secret realm without a problem since it's not within the scope of restriction."