The Amusement Club is cleaning the club room in preparation for new students and perhaps new members.  Opening a mysterious closet they discover a device that sends Akari back in time, with she takes as a chance 

to fix her mistakes.
All right. I guess we should 
clean it more often.
Bien, sería bueno limpiarlo 
de vez en cuando.
Bueno, limpiarlo de vez en cuando tampoco puede ser malo.
Certo. Acho que devíamos
 limpar mais vezes.