When it came to the understanding of ancient gods, Klein knew as much as many High-Sequence Beyonders. After all, he had the City of Silver who had continued on from the Second Epoch to this day behind him. The corresponding myths that were passed down the ages had left plenty of influence.

Based on what he knew, Phoenix Ancestor Gregrace was a so-called ancient goddess. Because of the City of Silver's Creator, the Ancient Sun God who eventually ended up being consumed by the Kings of Angels dealt heavy damage to "Her." Eventually, "She" perished towards the end of the Second Epoch.

However, "Her" influence had yet to dissipate to this day. Signs of "Her" existence remained because "She" was the founder of the Underworld!

City of the Dead… Unknown Soul… Ancient goddess… It sounds very dangerous… Klein looked at the radio transceiver in front of him and fell silent.

Tap. Tap. Tap. Another piece of illusory white paper spat out:

"Apart from that, I'm unsure of the rest.

"Great Mast