Hayate wants Nagi to attend school on a daily basis. One day, however, when returning from school, Nagi forgets a notebook, and as her butler, Hayate goes to the academy to get the notebook. However he arrives at night.... in an area that's supposed to be haunted!
It's because they continue to adhere 
to such old-fashioned systems
Como sigan aferrándose a 
unos sistemas tan anticuados,
É porque eles continuam utilizando 
esses sistemas antiquados,