Gong Saejin is a high school senior at Gyungsan High School. At school, she isn't a smart student but she isn't a stupid one too. She's a slow learner. As a girl, Saejin is just your ordinary girl. She's an introvert, becomes shy when she speaks to the boys but a ball of sunshine when it comes to her bestfriends.    Kim Jaehwan is a new student at Gyungsan High School, enrolling on the senior year because his family transferred to the city. He is extremely clever, although he