In a world forever changed by an unknown cataclysm, humanity has evolved beyond spoken language, relying entirely on telepathic communication for daily interaction. Most historical records have vanished into obscurity, leaving society to rebuild itself based on fragmented remnants known as the Akashic Phones. These artifacts offer glimpses into a past that feels both alien and mysterious.
The story begins when Yotsuba, an ordinary individual, encounters a girl who stands out starkly from everyone else - she cannot communicate telepathically. This unusual meeting sets off a chain of events that will challenge everything he knows about his world. While exploring a snowy landscape, he stumbles upon a curious object half-buried in the frost - a simple screwdriver that seems completely out of place in this advanced society.
Driven by curiosity and the girl's mysterious connection to this discovery, Yotsuba follows the trail to a nearby abandoned manor. The decaying structure holds secrets that have been waiting patiently through the ages. What he finds inside will not only unravel his understanding of reality but confront him with truths that humanity has collectively denied and memory has deliberately forgotten.
The game challenges players with elaborate and cryptic puzzles that require careful observation and logical thinking. Multiple routes await exploration, each offering different perspectives on the unfolding mystery. After completing your initial playthrough, special scenes and alternate endings become accessible, providing deeper insight into the world's hidden truths. Available for both Windows and MacOS systems.
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