Not Quite!!!

''Sasuke, Listen I Heard Back From Two of My Father's Oldest Friends, They've agreed to Train me as A Sage. If I Leave Now I can Rendezvous with you at the Northern Hideout.'' Says Shisui. ''Can't this wait until we've Killed Itachi?'' Asks Sasuke. ''That's Just it Cousin, Sage Art is one of the Most Powerful Combat Philosophies In Known History. Only A Select few Have Mastered it, And The Majority of them are Tied to me By Blood. The First Hokage, The Father and Younger Brother of the First Uchiha, My Own Father, My Mother, even Orochimaru and Lord Jiraiya. Sage Art Ninjutsu Is Almost Impossible to Surpass, the Only Man ever to give A Sage a Run for their Money was my Grandfather's Brother, Madara Uchiha. If I Have that, Then I Can better assist you. Please Cousin Let me Undertake this Training.'' Says Shisui as he Looks in Sasuke's Cold and Unforgiving Eyes. ''Then Go Right Ahead, I'll Take Any Edge We can Muster right now.'' Says Sasuke in disinterest. ''One Last Thing. Tayuya.........Keep Her Safe For Me Sasuke. I want Your Promise that she will remain Alive in My Absence.'' Says Shisui. ''Why? You Care For Her don't You?'' States Sasuke. ''Yeah I Do, Odds Are I'll Never step foot in the Leaf or Sand again, and besides the Hunt for Itachi, she's the only Good thing I've Got Going For Me. I see A Future With Her, so keep her alive for me Sasuke, Because if She Dies, So does my Loyalty For You and our Clan.'' Says Shisui as he Dissappears from Site.

(Mount Myõbõkū)

''Uncle Fukasaku? Thank You for this Opportunity.'' Says Shisui. ''No Need my Boy, You Father Specifically Requested you be trained as A Sage before He Was Sealed away. So it's Both My obligation and privelage to fulfill his final request. Now let us Begin.'' Says The Old Toad as he takes him To the Source of their Power......

(Less than One Week Later)

Shisui had Mastered the Sage Art taught by the Toads and was now on his Way to the Snakes. They had a Very different Way of Teaching Sage Art. And Like his Father Before him, he'd be Damned if he did not Master Both Disciplines.

(Ryūchi Cave)

''Master, Thank You for this Opportunity. Let us Begin.'' Shisui Says to the Great Snake Sage who Proceeds to bite Him by injecting Senjutsu Chakra into his Body. Shisui Screams in agony but the Snake-ification Process Isn't as Painful as it T'Would Be For another not of his Lineage. ''You've Survived, Now Let Us Begin.'' Says The Great Snake Sage.

(Western Hideout)

Shisui had Fully Mastered his New Powers, the Snake-ification had played Havoc and Hell with his Genes but came out fair enough. He chose to First return to the Western Hideout Given to Him By Orochimaru for his Personal Usage. In the Hideout was something that Could prove extremely Valuable. He found it Easy enough and Began the Process of Adding it to his Body. During that process he took the opportunity to Apply other Such Useful Things to his Body.

(Hours Later)

It wasn't pleasant but it was Successful, he now possessed Useful Traits to Assist Sasuke. With this done, he'd leave for the Northern Hideout. Taking the Executioners Blade also called Kubikiribōchō, alongside his Fangs and Shibuki. He'd previously collected the Kubikiribōchō, alongside the Shibuki during A Mission into Kirigakure Territory. He left for the Northern Hideout at once.