A special mission?

Sakura got a message from Naruto to go to Tsunade's office. Sakura race there as fast as she can. In a few minutes she got there. When she got there those Tsunade her teacher and Hokage looked very odd.

"Hello Tsunade, did you want something," Sakura asked.

"Yes, I have a very special mission for you." Tsunade said with a big grin scaring Sakura a bit.

"...What is it?" Sakura asked.