kai is in love with chanyeol but chanyeol is about tp marry kai's sister. The sister is only marrying him for his money and chanyeol finds out and thinks jongin was in on it too so he gets mad at him.After that it turns out his sister was pregnant with twins that are chanyeols. But she is a drug addict so kai takes care of them but then he gets cancer and has to go find chanyeol so he can take care of them. What follows is chanyeol not wanting to love kai because he thinks he is also after just his money.