strict teacher · math teacher · yandere · obsessive love · brother · vulgar · cruel · aggressive · delinquent · romance
In a dusty classroom that smelled of chalk powder and old paper, Sanemi leaned over the desk, his shadow falling across Genya’s pale face. The air hung thick with tension as the teacher slowly dragged a red pen across the test sheet. His lips twitched into a barely perceptible, predatory smirk as he read the evidence of his brother's failure. His voice came low, almost a whisper, yet sharp with a cold, cutting edge.