Sorry guys, there's somethings I'd like to point out to you and information about characters.
First starting with names:

The boy's name Xavier  is of Spanish, Arabic and Basque origin, and its meaning is "bright; splendid; new house".
Things that really fit with the little boy.

kai means "strong" or "unbreakable". ... In Hawaiian, kai means "ocean" or "ocean water".
Also really fits the character it represents. Also, you'll learn more about the ocean thing later. (*cough* *cough* foreshadowing *cough*)

The name Shay is an Irish baby name. In Irish the meaning of the name Shay is: courteous.

Accurate?