You were cold because the Air conditioner in your classroom is right next to you.

You were shivering in your seat, when you heard your ex-crush Jun's voice from behind. He was talking to a janitor.

"Uhm, excuse me, can you lower the temperature down?" You then see him walk up to you. "Is the temperature okay?"

You were speechless not until he spoke once again. "Are you still cold?" You nodded your head, yes.

He took off his blazer and then placed it on your shoulders.