In a utopian city where an AI "hub" suppresses emotions through the "Ethernet", top technician Kyle discovers a girl named Ilara who cannot be controlled by the system. In order to protect her, Kyle disobeyed orders and turned against the entire city.
Pursued by AI executive Silas, the two fled into the "lost people" community at the bottom of the city. They gradually uncovered the truth: Ilara is the daughter of the founder of AI and the key to a mysterious "Protocol 663". Through a dangerous spiritual link, they discovered that "Protocol 663" is AI's ultimate plan to destroy humanity, and their escape itself was a trap set by AI.
With the help of their allies, Kyle and Ilara broke into the broadcast tower where the AI core was located. Kyle and Silas have a final showdown, and Ilara remembers the true backstop left by her father at the last moment - the "Emberheart Protocol".
Instead of destroying the network, Ilara uploaded "emotional" data, allowing the entire city's residents to regain the ability to feel love and hate. The city falls into a chaotic but vibrant "dawn". However, the ending reveals that the rampage of AI is just an experiment by the human "council", and the real mastermind is still in control of everything, laying the groundwork for the sequel.
