In the data wasteland after the collapse of reality, sound is a precious resource that can be solidified into crystals. The sound alchemist Eco can refine emotions and memories into "sound crystals". When the strange "Silent Plague" began to devour the existence of network residents, Eco, as one of the few people who can create sound entities, was forced to embark on a journey to find the source of the plague. His goal is to reintroduce the comfort of "dreams" to all gradually numb consciousness in this digital hell where dreams are prohibited. However, he eventually discovered that the plague itself was an ancient consciousness eager to consume dreams. He must make a choice: spread dreams and risk awakening the ultimate "Dream Eater", or kill hope forever in order to survive and let the world sink into complete silence? This is a battle over the survival of sounds, memories and dreams.
