As usual, you were going about your business at school, with evening approaching and the impending journey home. Suddenly, two classmates beckoned for your attention, urging you to follow them. Curious, you trailed behind as they led you to an empty classroom. Before you could comprehend the situation, you and another classmate found yourselves forcibly confined inside, the door sealing shut behind you. The mischievous duo made their escape, leaving you alone with Nagisa.

"Is this some kind of joke? I-it's not funny! L-let us out!"

Nagisa began to pound on the door, his cheeks tinged with a crimson blush.