Nothing

Makoto shut off the app and stuffed the handbook back into his pocket. He didn't know what this was, but he figured it was probably some prank or experiment.

"I'll probably ask Chihiro about it tomorrow," Makoto said, shrugging it off and sitting at his desk to prepare for schoolwork.

The next morning, Makoto woke up and stretched his arms.

"Huh?" He asked, as a small ding radiated from his handbook. Oblivious to the nature of what was happening, he walked up to the handbook and opened up the lock screen, where a new notification was sitting.

Timer expired. A new change is in effect...