Oh Joong is an experimental subject unknowingly by the brother of Ginan, who majors in psychology. Origins are all successful experimenting with Pavlov's conditional reflections, ringing bells, drooling, and falling objects on the head. Yeong-ran introduces Tae-an, his brother Young-min, who he thought is the best in the world. Tyran repels Young-min who has a prince-like temperament, and Young-min and Young-ran's family are caught in great shock as the sky collapses. (Source: SBS)