Team Kakashi are stunned to learn that Sai's true mission is to kill Sasuke.  Naruto wants to believe that the smile Sai showed them was real, but there is a possibility that it was all an act.
Sorry, it's not Kakashi...
I'm his substitute.
.آسف، كاكاشي ليس هنا... أنا بديله
Lo siento, no soy Kakashi-san. 
Soy su sustituto.
Lo siento, no soy Kakashi-san. Soy su sustituto.
Mi spiace, lui non c'è. 
Ci sono io al suo posto come capitano.
Прости, но Какаси тут нет... я вместо него.