Hayate, Nagi, Maria, and Sakuya go to the Sanzenin Main House to visit Mikado Sanzenin, the head of the family and Nagi's grandfather.
in this place packed full of 
treasures seems far too imprudent.
en un sitio tan lleno de tesoros, 
puede parecer una imprudencia.
num lugar cheio de coisas caras 
assim, parece bastante irresponsável.