The drama depicts Kim Min Jae, a transfer student majoring in Practical Music and working part-time at the library, and Lee Kyu Ho, a Taekwondo major who helped him. Since their first meeting, the two have become entangled and closer, leading them to develop a romantic relationship.
金秀贤,金智媛,朴成焄,郭东延,李主傧,宋仲基,金甲洙,李美淑,郑镇荣,罗映姫,金贞兰,全裴修,黄英熙,金道贤,张允柱,金周灵,尹普美,吴正世
南尚智,李道谦,姜多斌,李孝娜,林河龙,李宗元,金宣敬,李代延,崔秀琳,金甫美,林娜荣,安妍红,???,金希珍
一之濑亘,染谷将太,忽那汐里,泷正则,田口智朗,岸谷五朗,松尾铃木,中尾彬,仙道敦子,笹野高史,古关安广,余贵美子,住洋樹,佳久创,寺本莉绪,每熊克哉,金子大地
池晟,韩智敏,张胜祖,姜汉娜,孙钟学,朴元尚,朴喜本,车学沇,金素拉,孔敏晶,李有镇
李沇熹,车胜元,李星民,金载沅,白成铉,严孝燮
李施宇,申贤胜,崔裕姝,林尚均,金柄官,郑宝美