Naruto Shippuden 01

Tsunade was in a meeting with Jiraiya, Kakashi, Naruto, Sakura and Sasuke, kurenai, Hinata, Kiba, Shino, Guy, lee, ten-ten, Neji, Shikamaru, Ino, chuji, Gaara, Temari and kankuro

Tsunade: We're going to a temple. I'm going to introduce you to an ally and friend. She's 16 years old, which is almost a year younger than some of you.

After a long journey, they all arrived at the temple and were met by a massive metal door. Tsunade knocked, the servant saw her and let them all in. Inside was a huge garden with fountains, training equipment, and many other things. They entered the house and were led by the master to a room. When he opened the door, they saw a young girl doing a handstand on one finger.