Kim Minhee was an cheerful and bubbly girl.But when her mom died, everything changed. Her father married to someone else and she suddenly had a new step-sister. At first, Minhee thought that it would be nice to have a sister, but she had never been more wrong in her lifetime . She never thought that her step-sister would be such a . Minhee thought that her life was miserable, but when a group of boys transferred to her school, they miraculously saved her from her miserable life.