{It seemed everyone disliked the Previous Civilization story. The stats kept dropping. I was numb.}
After the Battle of Binding ended, everyone helped Hua, whose memories had been burned away, understand what had happened. But when Hua learned that Theresa had chosen to end herself rather than become everyone's enemy, she too went to mourn before Theresa's empty tomb for a long time.
At that moment, Theresa reassembled from her dissipated state. She cheerfully returned to the rest of the cast, and when she came back, March 7th and Stelle tearfully threw their arms around her.
However, Theresa had to make it clear that she was a conceptual Aeon and did not truly die.
She also told everyone not to remind the Flame-Chasers, who were currently deeply immersed in their roles. After all, a true play had to be accompanied by sacrifice. Beauty that remained unchanged forever would eventually become tiresome and dull, which was why Theresa wanted the people of Penacony to experience the knives of the Previous Civilization.
She knew that the Previous Civilization's story was equivalent to giving the people of the Honkai: Star Rail world a warning in advance. If Shaoji ever really wrote a story where Honkai erupted in the Honkai: Star Rail world, then with the Previous Civilization's story as a foundation, everyone would not be completely ignorant of Honkai.
The way to make everyone remember how to fight Honkai was to leave a deep impression on them with the Previous Civilization's story. That way, they would passively place themselves in it and remember how to resist Honkai. That was Theresa's painstaking intention.
After all, if Honkai erupted in the Honkai: Star Rail setting, it would affect the entire universe. The strength of Herrschers and Honkai creatures would rise dramatically, and it was not