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.
Is that the grass that's 
growing all over the river?
أهو العشب الذي ينمو في النهر؟
Ist Kalmus nicht dieses Gras,
das im Fluss wächst?
¿Es la hierba que crece por el río?
¿Es la hierba que crece por el río?
Ça pousse près de la rivière, non ?
Il calamo?
É aquela grama que fica
crescendo em todo o rio?
Это та трава, которая
растёт неподалёку от речки?