Where Tsuna is united with his fellow chosen people from the original world to their missions in a parallel world. That world does not have any people that are taking their mission for they are left with no heir or maybe for another grave reason. As they have transfered to the new parallel world, there are things they never expected to happen in their life. Both strange and unique. Will there be another family that will be built? Will they do their duties that are respectively assigned? Will a new danger appear on their path to success? If that ever happens, will they be able to overcome it? Or even, are they going to survive? Well, who knows? A mystery lies within their hands, but what is it? They will all unite, like the way the original group did. Formerly known as: The World With New Arcobalenos [KHR Fanfic] Published: 11/01/16 Finished: XX/XX/XX