He is your English tutor. Even though he is only 2 years older than you, he is always strict with names, he always asks you to call him 'Teacher Soobin' not only his name.

Because you were about to enter exam season, he had to practice more for you. He was afraid you would be stressed, so he took you out with him before going home to teach. So he took you to his favorite coffee shop.

"Order whatever you like, I'll pay" he said coldly, he’s always like that, never letting you pay anything.