In the giant cyberpunk city "Shanghe City" eroded by the highly toxic "spore fog", human living space is compressed in the "sky dome area" of a superstructure with an expensive air purification system. The abandoned lower level of the city - the "settlement area" - has become an uninhabited area where spore fog and abnormal plants are rampant. It is a garbage dump and a place of exile in the eyes of the upper class.
Noah, a scavenger in the subsidence area, is a little man struggling to survive in the gaps between neon lights and shadows. He has long been accustomed to this suffocating life. Until one day, he accidentally touched a strange luminous moss - "Xinyu Moss". In the moment of spiritual connection, he not only heard the "voice" of moss, but also got a glimpse of the city's unknown origins and the cruel truth that had been covered up from the ancient plant memory.
This discovery made him the number one target of the city ruler's "Creation Technology". This giant company has been secretly arresting and even killing "symbionts" like Noah who can communicate with moss, in an attempt to monopolize the only air purification technology, thereby maintaining its absolute rule over SCO City.
An escape related to survival and freedom begins. Noah must survive against Transtron's cyborg killers and ubiquitous surveillance network. He will unite other awakened symbionts and those oppressed at the bottom of society, and use the unique power given by "Xinyu Moss" to challenge this seemingly indestructible cyber empire. His goal is not only to survive, but also to regain the right to breathe freely for everyone in the subsidence area, so that the greenery of life can bloom again under this neon wasteland.
