Paranoid Possessiveness Turns into a Yandere Episode

Just like the title, it's a short story in one or two chapters. The male protagonists are paranoid/possessive/black-minded/yandere/pervert/crazy. Be careful! ! Starting from Chapter 8, it's mostly about the heroine being a heartthrob. Some prohibited themes/lock seals can be viewed on the author's Weibo (*≧ω≦). Wb: ghost en Concept: The twisted love between the male protagonist and the female protagonist in each role