This drama is adapted from the comic of the same name by Jiang Cao. It tells the story of a man who loves a woman called "Witch". Park Jin-young plays the role of the male protagonist Lee Dong-jin in the drama. He majored in statistics and became a data analyst who enjoyed the highest treatment after graduating from university. He used to see the female protagonist appear alone in front of him and silently supported her behind her back. Many years later, he reunited with the female protagonist in the subway after a long absence. Now, for the life of the female protagonist, he is willing to give up everything he has. Lu Zhengyi plays the role of Park Mi-jeong, a woman who walks out of the rooftop at 3:30 in the morning every day in beautiful clothes and enjoys freedom. She is called "Witch". She was good at English since she was a child and later became a translator. Even if she stayed quietly, she was very conspicuous. She was locked in the rooftop and got used to loneliness. "Witch" is directed by Kim Tae-kyun, who has produced "Dark Number Murder". OTT broadcast discussion ing, and it is about to start shooting.