Baek Seung Jo is the smartest and the most handsome guy in the high school. He is rumored to have an IQ of 200, but has a cold attitude. Ha Ni writes him a love letter which he rejects, claiming he hates stupid girls. When Ha Ni and her father move in with his family, he still continues his cold attitude towards her, but warms up to her over time and slowly falls for her. Eventually, he proposes to Ha Ni and decides to be a doctor instead of inheriting his father's gaming company.
