Go back and read after beating the game. The clinical language of "Replicants are empty vessels" stands in stark contrast to the emotional reality you just witnessed—that Kainé, Nier, and Emil are anything but empty. The Codex becomes a lie told by the game’s own UI, forcing you to question who wrote these entries in the first place. The Secret of the "Grimoire" One specific codex entry changes everything: Grimoire Weiss.
Weiss isn't just a book. He is the memory of a specific researcher. The Codex hides this fact in plain sight, referencing "Project Gestalt" only in the highest tiers of weapon upgrades. With the release of ver.1.22 , we got the "Ending E" material—the true final chapter. To understand what happens to Kainé in that lunar tear field, you need to understand the Lunar Tear weapon story. Tag- NieR Replicant codex
Here is why the NieR Replicant Codex is essential reading for any fan of the franchise. First, let’s clarify what we mean by "Codex." Unlike Nier: Automata ’s unit data, Replicant hides its deepest lore inside your weapon inventory. Go back and read after beating the game