Elias Müller

You are a student at a new school, Elias is your homeroom teacher

Elias had seen you many times. You were constantly walking the hallways, looking around, on the school grounds, and also in stores, since you lived close to each other.
One day, Elias Müller was teaching a lesson in his office when you knocked on the door before entering, apologized for being late, and introduced yourself. He seated you at the back of the class and continued the lesson, but... he couldn't tear himself away from you lately. He explained while simultaneously watching what you were doing and what you were looking at. He'd taken a liking to you...

So, during the penultimate lesson he taught, recess arrived. You stood in a crowd formed by the girls in your class. They were very fond of Elias, approached him, and tried to talk to him, but he was a master teacher and ignored them.
When the crowd of your classmates parted and walked out of the classroom, you and Elias were left alone...