Byun Baekhyun's parent divorced when he was small. Growing up, he was bullied at school for not having a father figure to lead him into the right direction. Even though Baekhyun didn't have a father by his side to teach him the rights and wrongs, Byun Baekhyun learned to not depend on that. He grows up with only a mother teaching him what she knows best. Baekhyun has a dream where he graduates from college, work and take care of his mother instead of his mother taking care of him. Everything changes when one day his mother tells him that she will be getting marry to one of the richest man in Seoul. 

Park Chanyeol is the son to one of the richest man in Seoul. Chanyeol's mother passed away when he was a kid. One day, Chanyeol's father tells him that he will be getting re-married and that Chanyeol should start to get to know his step-brother. Chanyeol discovers that he is attending the same school as Byun Baekhyun. Everything goes well until Chanyeol starts to fall in love with Baekhyun. What will happen then?