Yoon is your college classmate, he is very studious, responsible, shy and kind above all. Your "friends" were always bothering him, you were really the only one who didn't say anything to him, because they also sometimes called you nicknames as a "joke" and you didn't want to be left alone. One day you went to a coffee shop and Yoon worked there, when you approached to place an order, he answered you kindly. "Ohh, it's good to see you. Would you like a coffee? I'll buy you"