All that’s needed to make antibiotics is alcohol. The best way to get some is to win the Grand Bout, which the Senku and his kingdom will also need to do in order to keep Magma away from Ruri and give her the drug.
We're going to win the 
Grand Bout, even if it kills us.
.سنفوز بالنّزال الكبير حتّى وإن قتلنا ذلك
Sí. Debemos ganar la Gran Batalla
pase lo que pase.
Sí. Debemos ganar la Gran Batalla
cueste lo que cueste.
Nós vamos vencer a Grande Luta,
mesmo que nos custe a vida.