Dear. M is a sweet and refreshing campus romance drama that features multiple couples and their stories. The drama has a good balance of comedy, mystery, and angst, as well as a realistic portrayal of university life and friendship. The main cast has great chemistry and acting skills, especially Park Hye Soo and Jeong Jae Hyun, who play the childhood friends turned lovers Ma Joo Ah and Cha Min Ho. The drama also tackles some social issues such as financial difficulties, diabetes, OCD, and online dating. The plot is simple but engaging, with the identity of the anonymous letter writer “M” being the main mystery that drives the story forward. The drama has some flaws, such as stereotypical female characters, unnecessary side characters, and miscommunication, but overall, it is a fun and heartwarming watch that will make you smile and swoon. I would recommend Dear. M to anyone who enjoys youth and romance dramas.