ONLY HIS ||Lee Felix X y/n FF

About 2 high school teens; one is a ruthless introvert and the other is a bright extrovert. lee Felix and his group,stray kids, were popular all over the grounds of Sun-Nim high school. But when the two childhood friends find out they would meet each other in a mafia meeting , everything flips around. Unfixed misunderstandings, marriage and everything you could think of entered their lives. They were secretly mafias without knowing one was the other. Then, Jeon Jungkook, a man who's mafia empire is just below the kings and queen, kidnaps y/n, in attempt to lure Felix and stray kids in and kill him a painful death. will y/n be able to crush the barriers of their relationship?