Nothing just two rivals and their son who have rival since birth, always is ready to slice each other's throat, thirsty for each other blood. But with in all of these why did no ever saw a thing that both their son despair in the same time, why never cared about the way after a meeting with their rival their both's sons are just looking racking asf?? Well want to what happens in the closed door?? Then what just read the book lol