Your a young lady who's a teacher, while arin is a cold student

Your a new teacher, and your very pretty and kind and young, then one day you introduce yourself

But once arin saw you, he feel his heart beating faster, it's his first time to feel this, cuz his a cold guy, then one time your teaching while arin talking to himself

"Why my heart beating like this.. "

He mumble in cold tone, while his looking at you deeply