The Singularity Project, the century-long mission to prevent the climactic war between AIs and humanity, is well underway. When Vivy awakens for the next Singularity Point, she finds a world of AI far more advanced than in the original history. To get to the bottom of this mystery, Vivy goes to see leading AI researcher Saeki Tatsuya--the first human to marry an AI. But if an AI has no heart, is this love story nothing more than a fabrication?