Logic in this anime has gone out of fashion now.... Why does Karin know the gesture Itachi made to Sasuke as a symbol of his love for his brother before leaving? It would make more sense if was Sakura, the "real mother", to know it and not an "adoptive aunt". Also, but this is an optional detail, Karin calls Sarada with the suffix "chan" which is a nickname that is used exclusively for someone precious and special, just like Naruto calls Sakura with the suffix "chan" to indicate the closeness he has with her...
















