C1476 Yin and yang

Since you don't know, then I don't mind telling you about it. You also know that there is a dense amount of pseudo-immortal qi in the Immortal Ruins, and some of the rare refining materials, including high level demon beast elixirs, especially some Sacred level or Emperor level elixirs, are rare treasures for us cultivators in the outside world.

"Therefore, every time Immortal Ruins is opened