Origin Martial Soul Power, Terrifying Mechanic Weapon 1

Wu Wei's timing was quite good. Not long after the Flying Elephant Dao Soldier completed his class change, the golden finger notification refreshed in front of Wu Wei.

"The fusion of the Eastern Han Origin Secret Realm has been completed. Your identity has been adapted. You can enter and exit the Eastern Han Origin Secret Realm at any time!]

The appearance of this golden finger notification stunned Wu Wei.

What did he mean by being able to enter and leave the Origin Secret Realm of Eastern Han at any time?

"Does this mean that the Eastern Han's Secret Realm of the Origin is different from the previous instance dungeons? It's not the kind that requires one to clear the dungeon or complete some kind of mission to come out, but it's the same as the Rotten Great Tang, where one can enter and exit at any time.