Kail's Life of Adventure [dropped]

Don't Judge My Book By It's Cover.For many years, Kail live as a slum child with few other kids. As he gradually gets older, he toughens with the harsh enviroment but unknowingly of what happen, his life forced to change into a whole new course.

Tanaka Daiki living an ordinary life with nothing to be sad or proud at. He thought everything went fine for him, somehow, it happen. Without he able to figure out of how does it happen, his life had filled with more excitement and colors to it.

Tanaka Daiki has live in Kail's body but where did the original goes to?

Daiki and Kail has nothing similar to them except their face and physical shape. What happen? How did it happen? What will he do from now on?? He has no idea of what is going on but this is where his adventure start off. Rather, it was Kail's Life of Adventure.