After the events of Steins;Gate, Faris NyanNyan reaches out to Rintarou Okabe and his friends to invite them to a Rai-Net battle competition in America. At the competition, they come across Kurisu Makise, a former colleague, who has been experiencing dreams that seem connected to world line events. Kurisu questions Okabe about these dreams and whether they actually took place, particularly those involving the two of them.