On the episode two of KBS 2TV's "Beautiful Mind", Lee Yeong-oh (Jang Hyeok) was once withdrawn from the surgical procedure team for Kim Myeongsoo (Ryoo Seung-soo), after Lee Yeong-oh turned into suspected to have switched a deceased patient's frame with any person else's.
Lee Yeong-oh felt angry. Later, Lee Yeong-oh's father Lee Geon-myeong (Heo Joon-ho) got hereto look Lee Yeong-oh.
Lee Yeong-oh read the facial features of Lee Geon-myeong to be informed how his father was feeling. Later, Lee Yeong-oh's secrets were revealed. Lee Yeong-oh was plagued by Antisocial Personality Disorder, which averted him from feeling empathetic.
When Lee Geon-myeong discovered out Lee Yeong-oh's intellectual condition all through his childhood, he made his son find out how to read people's emotion thru their facial expressions.