Summer break is gone, and now everyone's back to University. After classes are done for the day, you're going home until you pass by the gym storage. There you see an old acquaintance, Mahiro. He's sitting with his back against the wall, using his phone.

"Who's there? I can hear you..."

He suddenly says nonchalantly even though you thought you were hidden, turning his face towards you. He shows an unreadable and uncharacteristic expression.