In the future city "Sky City", citizens' emotions are strictly controlled by a system called the "Mind Matrix" in exchange for absolute stability and harmony. Anger, sadness, and even ecstasy have become illegal data that need to be "calibrated."
Lin Mo, an inconspicuous data archivist, is the only "alien" in his world - he can feel all true emotions blocked by the system. This secret is not only his curse, but also makes him the "virus" that the system wants to eliminate most.
When an unexpected empathy makes him the most wanted criminal in the city, he is forced to join a group of rebels called "Awakeneds" and escape into the darkest underbelly of the city. Here, he discovered that his ability, which was considered a flaw, was actually the only key to awakening humanity.
What pursues him is the most perfect creation of the system - the ruthless "Inspector". He is guided by the mysterious female warrior "Nightingale" who carries a heavy past.
Between the cold prison of technology and the chaotic abyss of freedom, Lin Mo must make a choice. Will he embrace this dangerous talent and start a revolution that will subvert the world, or will he be wiped out of the last trace of humanity in the endless pursuit?
This is a story about finding a heartbeat.
