The story of the campus-wide search for the mysterious "M" will be told in the novel "Dear.M". The realistic romance drama will follow the changing relationships and budding romances between various characters in the wake of all the buzz about the movie "M.". She has a bright personality and a warm heart. She isn't interested in having a romantic relationship or pursuing a dream. Cha Min-Ho is a computer science student at the university. He has a talent for creating innovative applications. For the past 12 years, he has been friends with Ma Joo-A. She is a member of the cheer squad at the school.