The Breeding Disaster

When the false sky shattered, Teyvat did not welcome a true starry sky. Instead, it plunged into the filthy nest of the Aeon of Propagation, Tayzzyronth. An endless swarm of insects, carrying self-replicating viruses and mental corruption, swallowed the world in an instant. The Seven fought with all their might, yet seemed powerless before this conceptual catastrophe. In their moment of despair, every eye turned to the oldest immortal god of all, the Geo Archon Morax.

Only he, with his immortal divine body as a breeding ground and himself as a vessel, could temporarily contain the source of this maddening [Propagation] and buy the world a brief moment to breathe. Yet the road to salvation came at an unspeakable cost. The calamity could not corrupt the Geo Archon's essence, but it ignited a twisted desire, forcing him to use the most primal means to "wear down" and "release" the disaster seeds that had accumulated within him.

Theme: An imaginative premise