Mafia || Kim Taehyung

When two most powerful mafia leaders meet. What will happen?? The leaders, Y/n and Taehyung, are feared by many, no one has ever seen them, no one has ever seen their face unless you were in the mafia yourself or you were about to be killed by them. Both seeking revenge for the deaths of their parents, aiming for the same goal, and taking revenge on the same person. Both leaders were unaware of each other's goal to take revenge on the third party mafia. One day they both cross paths. What will happen when the mafia leaders Y/n and Taehyung meet?? Will they both achieve their goals?? Will they find out about their past? How will it all end??