"What are you saying? Lu Man is my daughter, why don't I have the right to care about her?" Lu Qiyuan was displeased, Lu Man was his daughter and she would be his daughter for a lifetime.
"As long as my blood still flows through Lu Man's veins, she must call me 'dad' and listen to me! You want to break off relations with me? Impossible!" Lu Qiyuan gloatingly had an evil smile on his face, "Unless, she totally loses all the blood in her body and no longer has any of my blood in her."
Basically, he was asking Lu Man to die!
Either she had to die or as long as she lived even if she did not want to, she still had to call him dad!