Side Story 5: Gift

Summary
Kakashi ignores his damaged left eye and joins Obito in confronting Kakkō, Rin's only remaining captor. They attack him and manage to release her. Kakkō, rather than let a group of kids continue to believe it would be that simple, causes a cave-in. Obito pushes Kakashi out of the way of falling debris. His right side is crushed and neither he nor his team-mates are able to free him. Kakashi regrets allowing this to have happened, but Obito makes a proposition: since he never gave Kakashi a gift for becoming a jōnin, Kakashi can have his remaining Sharingan eye as a replacement for Kakashi's damaged one. Rin performs the transplant and Kakashi emerges from the rubble to face Kakkō.