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.
He's always made use of 
fragments of the stone Earth.
.لطالما استفاد من شظايا الأرض الحجرية
Er hat immer Steinstücke
aus der Erde
Usa la ciencia para aprovechar
fragmentos del mundo de piedra.
Usa la ciencia para aprovechar
fragmentos del mundo de piedra.
Le moindre fragment de sol
Ha usato frammenti della terra del mondo di pietra
Ele sempre usou os pedaços 
da Terra do mundo de pedra.
находил применение каждому
осколку каменного мира!