Jibaku Shounen Hanako-kun 2

Chaos returns to Kamome Academy when time itself begins to malfunction. Students suddenly age, parts of the school crumble before everyone's eyes, and the rumors point toward the Three Clock Keepers, supernatural beings who govern the academy's past, present, and future.

Hanako, Nene Yashiro, and Kou Minamoto set out to find the source of the disturbance and restore the flow of time. Solving the immediate case, however, only opens the door to older secrets and relationships that were never what they seemed. As hidden truths surface, the boundary between the living students and the school's apparitions becomes more dangerous than ever.