Fortress
After the 1st Fortress - Lkéaremnnixia, the Heir to the Stars ladder extends into more Fortresses.
Lkéaremnnixia is only mentioned and seen from the distance.
Each Fortress ascending upwards operates on a transcendent boundlessness from the other, whereas the former Fortress is less than fiction to it. The Fortresses expand eternally transcendent, with the number of Fortresses qualitatively surpassing the quantity of (in-between+).