In the cities of the near future, the "brain Internet" technology has initially become popular. People can upload part of their consciousness to the cloud and collaborate on the Internet. Some ordinary people have the opportunity to enhance their brains, implant memories, and even replace their consciousness. On the surface, life is convenient and efficiency has improved, but in fact, social concepts and moral bottom lines have begun to collapse, and everyone's psychological boundaries have been repeatedly touched. The protagonists such as Shen Mingqian were involved in this invisible urban "brain hole" revolution due to work, innovation, family affection, love, career or accident, and gradually became contradictory participants from simple beneficiaries or opponents. The story lines drawn by them include secret groups, black market technology, ethical disputes, social movements, mental illness, memory rewriting, loss of humanity, family division, etc., And finally converged in a data leakage and confusion event. Multiple story lines interpenetrate each other, revealing the cracks and struggles in the human spiritual world under the urban surface, and questioning the boundaries between 'technology and human nature', 'true self' and 'the price of choice'.
