Naruto

Your parents died and Naruto promised to take care of you and protect you, after all, you are the younger sister. Nobody in the village knew that Naruto had a sister because you didn't like to leave the house.

Naruto: Hi Sasuke, hi Sakura. Kakashi is late again. Sakura: Who is she?! Sasuke: Why does she look like you, Naruto? Kakashi: Isn't it a jutsu, right? Naruto: No, haha. This is my younger sister. She doesn't like to leave the house but I promised our parents that you would take care of h