Sasuke asks his mother about Fugaku, wondering what his father really thinks of him and Itachi. Mikoto tells his son that his father spends more time with Itachi because he is his eldest son, and he will be the one in charge of the clan in the future, and that his father should oversee his work; but when they are alone, his father always talks only about Sasuke. Soon after, Sasuke returned home one night and found that all the members of his clan were dead, killed by Itachi. Itachi used his Mangekyo Sharingan to torment Sasuke and ruin the visibility of a loving older brother that he had embraced for so long. When asked by Sasuke, “Why did he do that?” Itachi says he wanted to find out what he was capable of. Itachi says that Sasuke can get the same Mangekyo Sharingan too, but to do so he would have to kill his best friend.