In a city shrouded in the "fog of forgetfulness", memory is the most precious luxury. Inscriber Lin Mo is the only memory guardian in this city. He makes a living by recording and preserving the memories of others. When a mysterious musician Ella comes to his door with a forgotten melody, Lin Mo discovers that this is more than just an ordinary commission. He was drawn into a huge vortex. Behind the fog was the founder of the city, a mysterious organization called the "Empty Ones", and a cruel truth that could overturn the entire world.
