SteinsGate Zero

The story: Zero begins in November 2010 (before the end of the original game) on the Beta worldline, a parallel dimension to Steins;Gate (which is on the Alpha worldline). Okabe Rintarō is desperate because he was unable to save his dear Kurisu on July 28th. His life will change when he discovers Amadeus, a system that allows the intelligence and memory of an individual to be stored, as he will be able to communicate with his beloved again. But the dangerous SERN organization is pursuing him, eager to know the secrets of time travel. Will he and his friends be able to withstand the ravages of the space-time rifts?