Senku and his kingdom of science successfully test the first lightbulb since the collapse. Meanwhile, Asagiri Gen, a spy from Tsukasa's empire, is killed by an unknown attacker.
Event Year: 2019
Let There Be the Light of Science
Senku starts a ramen stand in hopes of winning over support for his kingdom of science, but some people are too principled to take such a bribe. Mentalist Asagiri Gen is not one of them.
Stone Road
Kohaku's sister, village priestess Ruri, is gravely ill. Senku, Chrome and Kohaku begin their quest to make antibiotics to save her life.
Where Two Million Years Have Gone
Kohaku shows Senku to her village, but it's going to take some convincing before they let him in. In the meantime, he makes friends with a like-minded, promising "sorcerer."