Yang Hyung-mo was like a girl when he was little. He liked the color pink and teddy bears... When playing "house," he would play the mommy role.
Later, when he becomes a 3rd year in high school, the clock in the testroom went wrong. He had only 5 minutes to fill out his OMR for his ATT (Academic Aptitude Test, simliar to SAT This test occurs only once a year). Due to this sudden pressure, he messes up and ruins the test. So Hyung-mo, not being able to go to college, goes to a cram school for repreparation for the test. There, he meets a girl and falls in love at first sight.