Twenty is probably too young to die, even for a shinobi, but if anyone can kill Sakura with sheer attractiveness, it's Kori.

Itachi and Madara massacre the clan, but they miss one member. Obito, loyal Konoha ANBU and disowned Uchiha, suddenly finds himself out of the organization that’s been his life for eight years and raising a traumatized, orphaned child. Kakashi helps. Or watches and plays the smartass, it’s a bit of a tossup.