There's no difference in yin and yang [ 2p hetalia story]

(WARNING if you have not watch the anime hetalia or heard about their 2p's this story will make no sense)

Imagine a world that when you turn 13 years of age a person comes to try to kill you. And that person is also you. These people are called 2p's and they are you but at the same time they are not. 2p's differ from you in a way like physical appearance and personality. For example if you have blonde hair, large eyebrows and a nice attitude then your 2p would still have large eyebrows but the color of the hair would be a different color like red, brown or what ever and they would have a mean attitude.

Andi lives in a world like this and her 13th birthday is coming up and Andi knows that when she meets her 2p she will die so Andi tries to live every second of her life happy until then, but what happens when she finally meets her 2p? Will she survive or will the 2p claim her life?