AddictedtoKdramas

@Haniicedtae919 Kaitlyn was living with Kei in James' house. James is Marc Senior not junior's friend and Kei's father.
            
            To make it easier.
            Natalia was married to Antonio.
            She went to America and got with Marc senior.
            
            Natalia and Marc have 2 children; Kaitlyn and Marc Jr.
            
            James is Marc Senior's friend and a judge who had a son(Kei) with Yuki.
            
            Kei and Kaitlyn are friends.
            
            Antonio isn't even part of this equation. He's just the ex-husband. 

@MemoirsofaGeisha Oh! I thought she was living with Kei in Antonio's house in the beginning.

@Haniicedtae919 oh I think you have the characters mixed up. Antonio was Natalia's ex husband. James is Kei's father and Marc Jr.'s friend. They're two different people. Not sure how you got them mixed up.