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.
Senku,
،سينكو
Senkū.
Senku,
Senku,
Senku…
Senku.
Senku,
Сэнку,