Help! What Do I Do About This Creepy, Obsessive Puppy Who Won't Leave Me Alone?

A brooding, obsessive ghost of a man who is a possessive illustrator × A firefighter who pretends to be cheerful and lively but secretly enjoys pain and is emotionally awkward Neither of them is normal. 【Love at first sight + Reunion after a long separation + Mutual healing + Devoted male lead + Rekindled love after a breakup + Both with no past relationships + Secret crush + Brooding puppy】 School setting in the first half, urban setting in the second The thing Jiang Yuchen regretted most was saving the classmate who was being bullied in high school. She stood up for someone in need, only to have him become obsessed with her. He secretly photographed and followed her, and kept things she had used... His gloomy studio was covered with portraits of her. "You're a creep!" She smashed his collection and drove him away. When they met again, she was the guardian who ran into a burning building, and he was the trapped man she risked her life to save. Through the smoke, she caught sight of the despair in his eyes. Her professional instincts made her reach out to him again. He came back. He acted obedient and pitiful, loitered around the fire station, and staged chance encounters... until he broke down and fell apart in front of her. Her heart softened. Hearing his twisted declarations of love and endless remorse, she reached out as if possessed. A person longing to be loved for their true soul becomes the object of affection for someone who loves only their false exterior. Someone longing for salvation entrusts it to a phantom whose soul is just as broken. Like light and shadow, they reflect one another but can never truly merge. Let them rot together like this.