Chapter 1~Rare sickness

{COMPLETED BOOK} Nya is diagnosed with a disease. There have been no records on this disease and there's no cure..
Well.. there is a cure, the cure comes from Kai and Nya's father. But their father have no medicine for it.
So Kai and Skylor go to the past to find the medicine before it's to late.

Everything for his sister.

I've got the idea from TheBoyNerd10 on Fanfiction.net. I do not rewrite it.