STEINS;GATE 0

After a long struggle across many worldlines, Rintarou Okabe has given up on saving someone dear to him. Hoping to move on, he lives as an ordinary student, until he becomes involved in research on an artificial intelligence based on human memories. This brings him back into contact with the past he tried to leave behind. STEINS;GATE 0 is a sequel set in an alternate branch of the original story.

"This is the story of the 'future' that could not be saved." December, 2010 - Beta Worldline: At the end of his journey through countless worldlines filled with untold sorrows and hardship, the protagonist, Okabe Rintarou, sinks into despair and abandons all efforts of saving "her". As his friends grow concerned for his well-being, Okabe immerses himself in the lifestyle of a serious student in a desperate attempt to push past his guilt and grief. He attends a college seminar for extra credit while still struggling with trauma, where he comes across two scientists who belonged to the same school and research team as "her". After he publicly defends their work against skepticism during a presentation, Okabe is invited to be a test subject for a research project titled "Amadeus"— an experimental AI which uses digitized memories as artificial intelligence avatars, one containing none other than "her" memories. But little did he know that the project would soon draw him back into that very world of dark conspiracies he had strived to avoid. The story is inspired by the "Epigraph Trilogy" light novels and other various drama CDs.