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.
The Akari Who Leapt Through Time
Akari recorriendo el tiempo
La Akari que saltaba a través del tiempo
A Akari que Viajou no Tempo