Prologue: Where Is My Sister?

[My sister mainly does the editing here.]

Kai Strike is an experimented lab rat, searching for his long lost sister. Trapped in an unfamiliar island, and now is the guardian of The Demon's Jade. He slowly find himself falling for the girl, as they live together in this deserted island. Alone for seven years to be exact, when he finds his sister, stealing the jade. When he saw her, he promised to protect her, even if she doesn't remember him. And he will protect her at all costs.

[An over protective little brother and a clueless older sister is showing right now!]