What if Sakura unintentionally develops a personality similar to Uchiha Obito's? How would Kakashi feel upon seeing her wear his goggles? What if Kakashi mentors Sakura out of nostalgia for his old teammate, and she learns the chidori instead of Sasuke? What would happen when Tobi finds out? (Not a time travel/self insert but follows & changes Naruto storyline. DARK plot/adventure)

Jiraiya adopts Karin. It was only on a whim and her resemblance to Kushina and his grief over Minato's death. Spontaneous decisions like that shouldn't have such large consequences, not for other Uzumaki like Naruto or Nagato, or even the Uchiha. But Kushina's demon would haunt him if he left her alone now. Naruto x Karin. Mild SasuKarin. (Plot pt: Karin replaces Sakura in Team 7.)