Who you are (One direction ft Others)

After Niall finds out that he has a twin he searches for her, but they couldnt be any different. Niall is the famous Irish boy from one direction, always on tour singing, playing guitar, eating and spending his life on the road with his 4 best friends. While his twin sister Arianna is a diver for great brittain who is aiming for gold at The Rio olympics with diving partner Tom Daley.

What will happen when they meet for the first time?