Sun Hwa, class valedictorian, is an ordinary girl. One day, a handsome boy, Hyung Jun, is transferred to her class as a teacher’s assistant. Sun Wha falls hopelessly in love with him. As class representative and teacher’s assistant, they quickly become intimate. As graduation approaches, Sun Hwa proposes to Hyung Jun. Hyung Jun declines, considering their differences. What’s more, a beautiful fellow teacher, Jang Mi, has been pursing Hyung Jun as well,becoming Sun Hwa’s rival. Sun Hwa has only her father to back her in the fight for her true love, Hyung Jun.