Chapter 1: Early Development of the Haruno Twins
Before long, the Hokage realized that the Harunos were not all they seemed. With immense chakra reserves and near perfect control at the age of two, he took the pair in for private tutelage. Their craving to learn helped.
At three, they spoke fluently, though not perfectly. At five, they could be considered Genin and it became so. They went on missions outside Konoha, but the Hokage made sure they were never in any real danger.
At age six, they were promoted to Chuunin. The missions spurred their development.
They skipped Jounin and jumped to ANBU on their 8th birthday.
They along with their demons became the best-kept secret of Konohagakure.
Gaara and Sakura walked through the gates of their hometown in full ANBU attire complete with bloodstains and obvious signs of deterioration and neglect decorating their armor. Their masks did not really do much because the colors of their hair was so uncommon, especially Sakura's, but both had a circle of red painted on the white porcelain. Aside from that, Gaara's was a brown raccoon and Sakura's was a combination of swirls painted in sky blue. Beside them was a boy, maybe twice their age, with long hair tied at the nape of his neck hidden behind a captain's mask.
"Raccoon, Dragonfly, I'm going to report to the Hokage, now. Feel free to go home," the boy said, addressing Gaara and Sakura, respectively. He vanished in the blink of an eye before Sakura could get out her "Ja ne, Weasel-san!" A moment later, the two also vanished, except in clouds of sand and petals.
Arriving in their small apartment, they removed their masks. Gaara was not surprised to see his twin pouting. Itachi always left before she could get to say goodbye. At least, he was more social than the teenaged Uchiha ice cube. The thirteen year old really got on Gaara's nerves sometimes. He took a cleansing breath and waited for Sakura to tell him to change out of his bloody, dirty clothes. ..Three ...Two …One.
"Gaa-nii-chan! You should really change now! I am tired of the smell of blood after that mission and you still wearing that makes me feel ill! You know…" she rambled on, but Gaara had learned to block her out when she went on a tirade such this, which only happened when they returned from an A or S class mission. Too bad that was at least once a month. Ah, the life of a eight-year-old ANBU with a crazy twin sister... it was never dull.