Holo is a state-of-the-art holographic AI, seen through special glasses, who is the perfect companion - intelligent, kind, and fully customizable. He also has the same appearance as his genius but prickly creator, Nando. While trying to avoid being captured by the wrong hands, Holo slips the glasses to So-yeon, a kind but aloof career woman. We follow So-yeon as she gets to know the ‘perfect’ Holo and the prickly Nando.