Character Arc
Lee Dong-jin is a gifted data-mining analyst whose entire worldview rests on the idea that patterns, probability, and evidence can explain anything, including the so-called curse around Park Mi-jeong. He attended the same high school as Mi-jeong and quietly crushed on her before the witch rumors closed her off from everyone, and a chance reunion ten years later reignites both his feelings and his determination to set her free from the superstition.
His arc traces a rationalist colliding with the inexplicable. Dong-jin approaches Mi-jeong's tragedies as a problem to be solved, gathering records and looking for the hidden variable behind every accident, convinced that proving coincidence will give her permission to live and to love. But the closer he gets, the more the danger that surrounds her threatens him too, forcing him to weigh his own life against his faith in logic and his growing love for her.
Park Jin-young, the GOT7 member and actor known professionally as Jinyoung, plays Dong-jin with a warm, dogged tenderness that anchors the romance. The role, filmed shortly before his military enlistment, lets him balance intellectual obsession with vulnerability as Dong-jin slowly becomes the one person willing to stand in the path of Mi-jeong's curse.