A class project reveals an, er, irregularity in Shinji's heritage. The Third Child learns first hand that you shouldn't shake the family tree unless you're prepared for what falls out.
It had always been present beneath his skin, the dark smoke that caused sleep. After the revelations of the Kyuubi, Naruto puts it to a more sinister use than pranks and thieving.
Naruto kills Sasuke at Valley of the End, The Council wants him punished, he runs and Kyuubi sends him to the Sekirei World.
During his training trip, Naruto is given a scroll which holds the secrets in how to seduce and ensnare women. A scroll he uses at first on the women and kunoichi around him but soon on the Shinob...