Not knowing your dad and your hero is David Bowie but without knowing it he is also your dad you've lived in an orphanage your whole life and your biggest dream is meeting your dad and meeting David Bowie.
Sky remembers during his childhood he would always play with a child named Seto. But Seto was always blindfolded with bandages across his eyes. Sky wanted to take them off, but he refused.
Sky hasn't seen Seto any more, and is in highschool. One day, he spots somebody resembling Seto, and sure enough, it was him.
Then... you have the life-and-death experience.