Criminal's Obsession (Yandere Male × Female Reader)

(Y/n) is a known detective of Sireo Police Department. As a young adult of the age twenty two, she solves elaborate homocides, always finding the culprit through thorough investigations and persuasive interrogations. For her skills as well as her outstanding reputation, she of course gets notice. Acknowledgment from a new criminal she just can't catch. He has an attachment to her. He'll kill those who know her in sick, demented ways, using insane techniques to violently make them corpses. He'll kill those who speak with her, he'll kill anyone who stands in his way. No one will catch him. He will catch (Y/n), and make her his, forever. Her life will change for the worse.