The dark untold story of Steins;Gate that leads with the eccentric mad scientist Okabe, struggling to recover from a failed attempt at rescuing Kurisu. He decides to give up and abandons his lively scientist alter ego, in pursuit to forget the past. When all seems to be normal, he is seemingly pulled back into the past by meeting an acquaintance of Kurisu, who tells him that they have begun testing a device that stores the memory of a human and creates a simulation of them with their characteristics and personalities. Okabe begins testing and finds out that the simulation of Kurisu has brought back anguish and some new unexpected tragedies.
Zero explores events from the Beta Attractor Field's future that contribute in making the end of the original story possible.
15-year-old high school student and manga creator Kaoruko Moeta uses the pen name Chaos. After ranking at the bottom of a reader survey, Kaoruko's editor recommends that she enter an all-female dormitory for manga creators. Kaoruko's roommates are shōjo manga creator Koyume Koizuka, teen romance manga creator Ruki Irokawa, and shōnen manga creator Tsubasa Katsuki. The girls support each other as they work to become better manga creators