According to the TV inquiry of Korean dramas, the Korean drama "Big Man", the son of the chaebol who changed his mind and became a teacher, was directed by Chi and starred by Kang Zhihuan, Cui Daniu, Zheng and Han. Introduction: The third-rate hero was involved in a plot to save the only son of the chaebol group who had to have a heart transplant. One day, he lived a new life as the eldest son of the chaebol group. It's a story about fighting against the injustice of the world after realizing the fact of being manipulated.