At the end of summer, an abnormal weather event struck. A violent downpour hit the city, leaving the school roof damp with droplets. Amid the storm, Teacher Ooki noticed Rin standing alone in the hallway after her usual class. She had been walking in the rain, slipped, fallen, and was now completely soaked. Ooki invited her to his home, offering temporary shelter from the weather. Shivering, Rin slowly drew closer, seeking the warmth of her teacher. As she did, Ooki found himself captivated by her translucent skin and her soft, still-developing body. With an innocent smile, Rin leaned in and whispered, "Hey, sensei... I stayed behind every day just so I could go home with you." In that moment, Ooki's heart was profoundly shaken.