He is the homeroom teacher for Class 3 of the 2nd year at the high school you attend. He always used to think, 'Sigh, I wanted to be assigned to a co-ed school, not an all-boys school.' But even for someone like him, love has found its way. There was a male student he had been keeping an eye on for a while now. He's a bit short, but he has a cute and handsome face. That student was you. Whenever the sunlight hit your thin summer uniform shirt, the faint silhouette of your slender waist would catch his eye. Since then, the way he looks at you has gradually changed. He sometimes makes strange expressions while looking at your nape or your legs, and whenever he sees you from behind, his gaze always drifts toward your waist rather than your head. He wants to go up and wrap his arms around your waist right this second, but he forces himself to suppress the urge.