This is a fanfic of Naruto Sasuke and Uchiha Itachi. Just like the title introduction, this is a brother-reversal article. It was Itachi who became his younger brother and Sasuke became his older brother. In fact, there is no obvious conflict. To be precise, it is a fun story about the arrogant idiot brother and the smart and calm younger brother. If you are interested, read it~~You are welcome to taste it