Aimumu Fortress is actually the abandoned ancient castle Hilveld mentioned earlier.
There are many legends about this ancient castle, and the reasons for its abandonment are varied. Some say the people in the castle vanished overnight, leaving behind an empty fortress—yet another story suggests that for some reason, its original owner voluntarily deserted it. Over time, its gray-white walls have become entangled with vines, ultimately becoming part of the mountain and forest.
But regardless of the legend, they are filled with bizarre stories. Within the tales are wealth as vast as nations, legendary treasures, and secrets within the castle buried deep and untold.
Most of these hard-to-distinguish rumors are just fabrications. People used to venture into the castle to uncover the truth, but over the years, the castle has been reduced to an empty shell and rubble buried beneath the snow.