He is also upset that his son Cao Da-Hen has taken the family-style kenpo and turned it into a product for money. At the start of the series, he asks Mao Hun to have Mao Lan stop his granddaughter Cao Chunyang by killing her (actually by the end you realize it is not a literal death, but by Chun Yan's defeat his style will die with him.)
He is upset that his son, Cao Da-Hen, has turned their family's kenpo into a money-making product. He orders Mao Hun to kill Mao Lan's granddaughter, Cao Chunyang, but it turns out she will be defeated and her style will die with him.