To make antibiotics, Senku and his kingdom need to obtain sulfuric acid from a fountain of the stuff. The team goes prepared, but there's no guarantee that they'll make it back alive.
Event Year: 2019
Clear World
The development of glassworks, an important step for making sulfa drugs and for chemistry as a whole, turns out to have a surprising benefit for Suika.
A Flimsy Alliance
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.
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.