Rita Rossweisse pursues a dangerous quarry—the elusive Herrscher of the Void—only to stumble upon something far larger and more sinister than her original target. Her investigation inadvertently exposes hidden technology belonging to the World Serpent, an ancient and formidable force whose true intentions remain shrouded in mystery. This chance discovery threatens to destabilize the fragile balance between the forces hunting Honkai and those who would exploit its power for their own purposes. As the scope of Rita's situation becomes clearer, the stakes escalate beyond a simple pursuit into something that could reshape the world's fate.