Regarding Zhong Kujin... I really can't feel any sympathy for him. Sorry, although the Jiang family were horrible to him, his GREED is what made him think he 'loved' ZNN's mom. When she gave him money for rescuing her and taking her to the hospital, he realized how RICH she was so he raped her... How can that be love??? If he really loved her, why did he assist in killing her with the Jiang's just so he could get ahold of her money? Even though he did sell ZNN to the human traffickers like Jiang Shuwan, when ZNN came back an was framed for murder by her dear, dear sister, did he even try to get her out? Did he visit the daughter of his 'true love'??? NO! He is just a complete scumbag who only cares about his greed.
Ye Hai is killed after he tries to get more shares of the Leng family's business.