Senku Ishigami (Japanese: 石神 千空, Hepburn: Ishigami Senkū) is the protagonist from Riichiro Inagaki and Boichi's manga Dr. Stone. Beginning in April 5738 AD, it has been over 3,700 years since a mysterious flash petrified nearly all human life. A 15-year-old genius named Senku Ishigami is suddenly revived to find himself in a world where all traces of human civilization have been eroded by time. Senku sets up a base-camp and begins to study the petrified humans in order to determine the cause of the event, as well as a cure.