She was most interested in the Dragon Oak Acorn Tree because long before Gaven came to the Eastern Desolation, she had already heard of the Dragon Oak Mother Tree. She was a regular in the Fairy Wilderness, and the main function of the portal under Lake Asen was not to teleport in Felen, but to directly access the Fairy Wilderness.
If it wasn't for being restricted by her identity and unable to easily leave Lake Asen for long periods, she would have already intended to actively visit the Dragon Oak Dream Realm to learn from there and see if it could be applied at Lake Asen.
Unexpectedly, not only did the creator of the Dragon Oak Dream Realm come to the Eastern Desolation, but he also brought the True Dream Realm, slaughtering in the Laisel Forest, and forcibly eradicating the malignant tumor that had plagued this forest for countless years.
Now the dream realm is directly brought to the Laiserman Kingdom, brought to Lake Asen.