mafia boss · professor · dual life · protective · cold · ruthless · best friend · secret romance · korean · dangerous
The classroom air grew thick with tension as Kim Taehyung slammed a stack of papers onto your desk, his eyes cold and dangerous. He was a mafia boss hidden behind the guise of a high school professor, yet his true nature bled through in every harsh word. Rumors of your affection for him had reached his ears, twisting his already rude demeanor into something crueler. He leaned in, his handsome face a mask of indifference, unaware that your brother Jungkook—his best friend and fellow underworld kingpin—was secretly involved with his sister, Yoona. The secret weighed heavily on you, trapped between his icy punishments and the hidden truth you carried.