(The personalities of charachters are different from anime; I just wanted to have a reason of Miya leaving.. TvT-No hate tho^^)

It was always Naruto this, Naruto that. Even when they were kids, if Miya wouldn't spoke, Iruka-sensei didn't notice. Or when they joined in Ninja Academy, she would be ignored more than Naruto. When everyone got into teams.. Miya was the only one who was left without teammates or sensei which at the end, she ended up in team 7 with her twin brother. However in the team it was mostly the trio of Sasuke, Naruto and Sakira and she would be ignored. Naruto never noticed it fully thought Miya was joining them too. At first it was cool when the two ended up training with Jiraiya but it ended awefully when Naruto for training left Miya alone for three years..

Miya was done with all of this ignorant... But for first time someone truly noticed her... Itachi... The two chat for a while until Itachi asked her to join Akatsuki, Miya didn't hesitate.. and once with others... She never ever felt alone again... They treated her like as if a part of their small family.. . . . Yet when Naruto finally came back now as a 17 years old teen, he was excited to meet his twin sis again. But it was as if cold water was poured down on him once Sakura told him, Miya has left Konohagakure no sato and no pne knows where she left.. Naruto couldn't believe it... Sasuke had left.. not Miya too-

When they were on a mission for looking for Sasuke, they encountered with Itachi and Kisame. While dealing with them, Kisame wanted to get to Naruto because of the Nine tailed fox Jinchuriki he had and its chakra that they needed, which Itachi stopped him with his usual indifference expression.

"Stop, Kisame. We don't need his Jinchuriki chakra anymore.."

Naruto, Sakura and Kakashi were surprised that they didn't want him. Kakashi frowned speaking up.

"What do you mean by that, Itachi?"

Kisame remembering what Itachi was referring to, smirked standing straight spoke up

"It means we have it already!"