When time itself becomes a prison, who can escape the doomed ending? A beggar, holding a blood-stained compass in his hand, glimpses the future devoured by Cthulhu. He swims against the current, pulling the strings of cause and effect, but doesn't every change make reality more fragmented? When a best friend becomes an enemy, when saving means sacrifice, how should he choose? Who is the holder of this chess game that spans ancient and modern times?