Nagi dresses Hayate in a girl's sailor uniform, but things continue as it goes on to the point where Hayate looks like a cat girl!
What? Hayate from the Sanzenins is 
at that old school building?
¿Eh? ¿Hayate-kun está en el 
antiguo edificio de la academia?
O quê? O Hayate-kun entrou 
naquele prédio abandonado?