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If your game fails to start after applying the patch, a file may have been corrupted during download or placement. Use Steam's option to reset the game to its default state, then re-download and re-apply the patch. Save Files Are Missing or Broken
The Secret Files typically contain side-stories and bonus interactions that are not integrated into the main plot.
: It is generally safe to apply the patch even after you have started a playthrough, though it is recommended to keep progress in a single save file to avoid unlocking issues. Finding the Patch
Let’s be clear: this wasn’t an official DLC. It was a fan-led, cryptographic deep-dive into the game’s leftover archives. When the English translation first landed (courtesy of Sekai Project), players noticed something odd. The game’s data folder contained .bin files with cryptic names like secret_703.bin , debug_memorial , and kage_archive .
Beyond the main Dive1 and Dive2 titles, a full fan disc called was released in Japan on September 24, 2010. This is a "fandisc"—a collection of mini-games, what-if scenarios, and additional story content that serves as an epilogue to the main game. Many players consider the Secret Files content to be closely tied to DiveX , as this is where a significant portion of the game's extra narrative material is stored.
The patch does not just add optional adult scenes; it fundamentally impacts the narrative cohesion of the game. 1. Uncensored Story Beats
