You is a quiet, innocent girl, who secretly likes her senior who serves as the basketball captain of Neo Culture Technology High School. You is in the middle level while Jaemin is at the end of the semester level. Jaemin is known because he is the son of a wealthy conglomerate, his cold and distant attitude makes him admired by many people. Jaemin has some friends consist of Jeno,Mark,Haechan and Jisung. However, without everyone knowing, Jaemin's life is not as perfect as it seems from the cover, in fact Jaemin is the most complicated part of the book. his parents did not love each other but chose to stay because of image and reputation. Jaemin could be said to be an unwanted child and was pressured by his grandfather to be perfect. Jaemin actually not as perfect as he seems and as tough as he shows, Jaemin just doesn't have a place to be himself and be vulnerable. Meanwhile, you is a quiet and innocent girl. She always secretly watching Jaemin from the 7th floor where his class is. She admires Jaemin silently.