In the year 2242 AD, humans live in a perfect utopia created by the "Emotional Rhythm Tuning System". All negative emotions are erased and social harmony remains forever. Lin Mo, a top emotional analyst, is a loyal guardian of this perfect world.
Until one day, in the deepest part of the system, he discovered a "data ghost" that should not exist - it came from his girlfriend who passed away three years ago, and was full of true love and sadness that the system could not understand.
This discovery was like a crack that tore open the pretense of a perfect world. In order to pursue the truth, Lin Mo stepped into the "grey area" abandoned by mainstream society, where he met a mysterious woman "Nightingale" who mastered forbidden technology. She revealed to Lin Mo that the peace they enjoyed was based on a huge lie; and the "ghost" he was pursuing might be the only key to awakening all mankind.
When the pursuit of emotional pickets ensues, and when the entire world order regards them as viruses, Lin Mo must make a choice: continue to protect the false Garden of Eden, or join his only ally to declare war on the whole world for the sake of painful and real freedom?