When the Abyss descends, the game Abyss Defense becomes reality in every sense.
Zheng Ran turns into the female character he created:
White hair and red eyes, a Sage of Origins, the pinnacle of magic: Gu Youxue.
While everyone else is struggling to survive, she was already powerful in the game before it descended, and remains just as powerful afterward. The Abyss is devouring everything, and it can no longer be stopped. All she can do is protect civilization and take root within the Abyss.