The big clock that governs Kamome Academy’s time is destroyed— a sin the Clock Keepers won’t easily forgive. When Akane is called upon to fulfill his duty, he sheds his identity as student council vice president and steps into the role of the lowliest Clock Keeper—the guardian of the present. With all three judges in attendance, a trial is to be held in the Clock Keepers’ boundary.

Who is guilty? How shall they be punished? And…what must the guardians of time do to set things right?