Kohaku has located the treasure left behind by Byakuya and the others, but it's encased in concrete. Senku has to devise a plan to quietly get at the contents inside, so as to not alert the guards.
I still don't know what 
that nitric acid stuff is.
.ما زلت لا أعرف ماذا يكون حمض النتريك ذاك
Diese Salpetersäure
oder wie sie heißt …
Sigo sin tener ni idea de qué es
exactamente el ácido nítrico,
Sigo sin tener ni idea de qué es
exactamente el ácido nítrico,
Franchement, l’acide nitrique,
Io questo acido nitrico
Eu ainda não sei o que é ácido nítrico.
Честно говоря, я до сих пор понятия
не имею, что такое азотная кислота.