A First Love Story S01 E02 The reason I fell in love with you

Jae-seong runs to Min-gyu as soon as he gets a military vacation. Unlike Jae-seong, who had only thought of Min-gyu, Min-gyu seemed excited about his new college life and bragged that he became a popular guy on campus. Jae-seong is a little upset to see Min-gyu like that.