Magma’s lackey, Mantle, fakes an emergency involving Suika to lure Kohaku away. The plan works; Kohaku leaves to "save" Suika, effectively disqualifying her if she doesn't return in time.
Senku and Chrome finalize the production of , a powerful antibiotic. The Chemical Roadmap
Created by heating sulfuric acid and adding salt. Dr. Stone Episode 13
Senku, Kohaku, Chrome, Kinro , and Ginro all register to increase their chances of knocking out Magma. Key Plot Points
During the fight, Kinro struggles because he cannot see clearly from a distance. Suika realizes he has the "fuzzy eye sickness" (near-sightedness) just like her. Magma’s lackey, Mantle, fakes an emergency involving Suika
The Grand Bout determines the village’s next chief and Ruri's husband. The prize includes a massive supply of , which Senku needs for his medicine. The Contestants
Produced by using electricity to separate saltwater (electrolysis). The Chemical Roadmap Created by heating sulfuric acid
Kinro is paired against Magma in the very first round—the worst possible outcome for Senku's team.