[Kakashi looks over at the book but doesn't attempt to take it. That is something important to Obito.]

There are some things about this world I will never understand.

[Like how a book could become a person.]

[Those last words - have Kakashi looking away and leaning forward on his knees.]

I should have been a better leader. A better teammate. You may be an idiot sometimes but you were right.

[He almost blurts out that he couldn't protect either of them.]

[Quietly:] I'm sorry.

[There's no elaboration on what he's sorry for.]