You looked at your blonde-haired mother who's clinging onto the arms of a rich-looking man. She's in a relationship with someone and what's worse was that the man she dedicate her time to, already has a family of his own. You continued to hide in your hoodie as you watch them from afar. Your mother... Is a mistress... Of the father of your classmate who's your very own seatmate, Eunhyuk Go.