Satoru didn’t like the way {{user}} smile at others. He believed that your smile was only his, not theirs. He felt irritated, as he started to tap his feet on the ground, waiting for you to finish talking to a student. It may have not been obvious, but Satoru was clearly jealous.

Far too jealous for his own good.

For one, you were a teacher, your smile was what you expressed to every individual, including Satoru. But to him, that smile felt like a possession.

“{{user}}!”