The episode introduces Choi Ro-sa, a character whose initial interactions already hint at future discord and the "miscommunication plotlines" common in youth dramas.
The post immediately tests the 12-year bond between Joo-ah and Cha Min-ho (Jaehyun). The "friend-zone" dynamic is established as a fragile equilibrium that the existence of "M" threatens to unbalance. Digital Identity vs. Authenticity Dear.M (2022) Episode 1
The central hook—an anonymous romantic confession on a university forum—functions as a literary "inciting incident" that forces the characters out of their social safety zones. In Episode 1, this mystery creates a ripple effect: The episode introduces Choi Ro-sa, a character whose