This alone has become one of my favorite yuri series...a well smooth pace with little hiccups.
So, this is just way out there in the boondocks outer space theory: what if Haruka is the main source of power of Moritani where Moritani has to start dealing her issues as she starts loosing seconds of each hurdles she overcomes with Haruka's help...character development. To the point where Moritani one day lose her time-stopping power and deal with the everyday life can no longer hide behind or make excuses.
Will Haruka (love that's girl's hair and eyes) and Moritani stay together if that ever happens?