Who is Park Joon Ho from A Step from Heaven and what is their importance?

Park Joon Ho is the first Park born in America. Uhmma becomes pregnant with Joon Ho shortly after arriving in America. Joon Ho is the first son and called the pride of the family. He is pampered and indulged as a baby, but Apa is harsh with him as he gets older. Joon Ho is expected to jump to attention when Apa gives him an order. If he does not respond properly to Apa's questions, he is beaten. Apa says that he is making his son stronger, making him a man. Apa succeeds in making his son angry and detached from his emotions.