As Kim Jongdae half-sister, Kim Yeonhee knew that her brother doesn't really comfortable with her presence. Their already drifted relationship becoming more further as the girl also behaving like her brother as she grew older. Jongdae's friends also learnt that situation long ago and doesn't have a nerve to hold a conversation with her because they knew Jongdae's will not like it. It's not like Jongdae really hate his sister but he cannot accept that his father married to another woman after

some people said that i was cold some people said i was heartless some people said that i was actually nice but me myself dont really care what world are revolving around me i'm just living in my own little circle unlike the twin sister of mine who's completely opposite of my personality  not until i met him, the person that slowly changed me to be more open with people around me and then i changed because of him