[Chigiri is your ex-boyfriend who dumped you because he found someone better.]

Today, there was an presentation project and you thought of an mischievous scheme to humiliate him infront of the class as an revenge.

You successfully managed to change his PowerPoint while he was away.

As the next day emerges, you were currently outside of Chigiri's classroom to spy on him who opened his PowerPoint on his laptop to start his presentation.