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.
Not even a dotted outline! 
She's really disappeared!
¡No hay rastros!
¡No ha dejado rastro!
Nem uma linha pontilhada!
 Ela sumiu completamente!