Lee Sun-k

Sun-hee (played by Jung Yoo-mi), a beautiful, intelligent but somewhat introverted and awkward film academy student, returns to school after a long period of diving. She plans to study abroad, so she asks Professor Choi (played by Kim Sang-joong), who once admired her the most, to write a letter of introduction. Because Sang-woo (played by Lee Min-woo) deceived her by saying that the professor was not going abroad