So 'Dear X' takes a pretty sharp left turn from what you'd expect based on the title and initial setup. It starts off feeling like a revenge fantasy—this talented but overlooked pianist, Euna, gets betrayed by her famous composer boyfriend, Hyunwoo, who steals her work and passes it off as his own, destroying her career. The early chapters are all about her clawing her way back, planning to expose him and reclaim her music.
But the real plot engine isn't just the revenge; it's this intense psychological unraveling. As Euna executes her plan, she starts receiving these anonymous, obsessive letters signed 'Dear X.' The mystery of who 'X' is becomes central, and it blurs the line between her being the hunter and potentially another victim. The story morphs into a thriller about obsession, identity, and the price of success, asking whether burning someone else's life down can ever really rebuild your own. I got totally hooked on the weekly cliffhangers around the letter writer's identity.
Honestly, the art does a lot of heavy lifting in building that paranoid, claustrophobic mood, especially in the scenes where she's alone in her studio.