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.
You say that like you're hot stuff, 
but you really aren't.
.تقول ذلك وكأنّك شخص رائع، لكنّك لست كذلك
Du lässt es so cool klingen,
dabei ist es genau das Gegenteil!
Oye, eso no es nada
de lo que enorgullecerse.
Oye, que no es nada
de lo que enorgullecerse.
Tu prends un air classe,
mais tu ne l’es pas du tout !
Hai fatto una bella figura, ma stai dicendo
 delle cose totalmente da sfigato!
Você fala como se fosse grande 
coisa, mas não é nada.
Говоришь решительно,
но это вообще не круто.