black snow and white shadow(knb and khr fanfic)

Black snow is the nickname of the decimo(which is tsunayoshi sawada).White shadow is the phantom player of the kiseki no sedai(which is kuroko).They are the two most powerful assassins and the best hackers in the world.No one knew that the two most innocent people in the world are the most dangerous. Find out why the reason why they become assassins and what will the others say when they find out. Find out more in this random story that I came up with.