Things are turned upside down when an anonymous confession is published on Seoyeon University's student forum. Four students – Ma Joo-ah (Park Hye-su), Cha Min-ho (Jeong Jae-hyun), Seo Ji-min (Roh Jeong-eui), and Park Ha-neul (Bae Hyun-sung) – from different departments come together in search for "M", the writer of the mysterious confession. They go through university life, changing friendships and realistic budding romances in the course of their search.
Directors:
Park Jin-woo, Seo Joo-wan
Country of Origin:
South Korea
