When the words fade in the tide, only that page of the diary will forever freeze the moment when the ocean stops. In the wasteland, the last writer of mankind fled with this forbidden book - it is not only the key to the recovery of civilization, but also the button to restart the world-destroying flood. In a world where memory ebbs and flows with the tide, all records are disappearing, but the truth gradually emerges with each page deciphered: that submergence that lasted for nine hundred years may have been a carefully designed redemption. As power attempts to bury secrets forever in the deep sea, a group of betrayers will make the ultimate choice - to uncover the eternal price, or to let humanity live forever on the shore of lies as the tide recedes.