Michael Jang (Joe Cheng)
The super genius with an IQ of 200, not only is Michael intelligent, he's very good looking too. There is practically nothing that he can't handle, yet he feels his life is lacking direction. During his childhood, he was often dressed up as a girl by his mother, who hoped to have a daughter, causing him to develop a psychological deviation, always showing his cold face toward people. Jeannie's appearance in his life has brought a series of digression to Michael's peaceful and happy life. He is influenced by Jeannie's naive way of thinking, which lead him to his goal of studying medicine. After their marriage, Jeannie's lack of self-confidence makes him love her more, making her feel she's has someone steady to lean on to.

Jeannie Jang (Ariel Lin)
She has a heart of gold, is honest, direct, optimistic and patient but her mind is not very intellectual and can be too emotional specially when it comes to family issues.  Even though she is clumsy and often ruins things, she still puts tireless efforts towards her goals. At her high school opening ceremony, she falls in love at first sight with Michael, who was made to speak as the representative of their batch. Jeannie is a walking disaster and has been caught in various embarrassing situations with Michael. The young man's cold attitude almost caused Jeannie to give up on her love. But after seeing positive changes in Michael's attitude gave Jeannie the courage to fix things with him.