Gate to the Demon Domain?

He hadn't heard the million-year-old soul mention this before but it seemed like the most important place in the Reincarnation Hall of the Chaos Demon Emperor.

Ye Qingyu nodded but he didn't probe further.

He turned and gestured to Hu Bugui, then they departed as a group. He continued to follow the guidance of the million-year-old soul to reach the end of the hall of [Tusita Palace]. There was a small transit space in the depths of [Tusita Palace] ...