Ling Yunpo and An Zhisu teleported into the Demon Locking Tower from the Four Symbols Formation Eye on the thirtieth floor.
The plan to go to the Demon Locking Tower had been set for a long time, and Ling Yunpo naturally did his homework in advance. He had a rough idea of what demons and treasures were hidden on each floor.
On Senior Sister An's side, the main goal was to find her the Purple Mansion secret medicine.
For himself, he wanted to find fragments of the Kunlun Mirror and, along the way, see if there was anything useful for those at the Golden Core Realm.
To get back on track, the reliance of cultivators on the external world decreases layer by layer as they progress from the Foundation Establishment Realm to the Golden Core Realm, and then to the Nascent Soul Realm.