A newcomer

Rose, a new agent, joins Gibbs' team. But is she really who she claims to be? Very quickly her true identity and questioned by the members of the team. Yet this discovery could bring much more joy than one might think.
And rule # 12 is broken again in the past as well as in the present ...

I don't know if I should do it but I saw it in a lot of fanfiction that I read so; I don't own any of the characters from the NCIS series. Only Rose, Austin, Christian, Jim, Noah, Charlie, Leslie, Tom and Suzie are characters created by myself.