The battle had only begun and Keiko was already exhausted from using her underground roots technique on such a massive scale to restrain Shukaku. She could at least revel in the fact that her wood jutsu presented an opportunity for her comrades to take him down before he got too far, and that the Empress had chosen to make an appearance during their battle.

Afterwards, the roots retreated back into the ground and everyone seemed to lower their guard. That put Keiko slightly at ease. She heaved a sigh of relief and dove toward the group, her flower petal hovering quite a distance above the Empress and her comrades. She was so high up that no one would assume Keiko was trying to eavesdrop, which she wasn't. In fact, Keiko didn't really want to hang around much longer. With most of the enemies dead and the sealing of the one tailed it was about time to retreat back to the base for a bit of rest. 

Keiko gave a final glance at the group before flying off into the sky. She wanted to get back to the base as soon as possible, though she could stand to practice her Mokuton a bit more. The new jutsu she had been working on for the past several months would have definitely come in handy during the Shukaku fight, especially if the others weren't there to attack. That thought was enough to convince her that training was a bit more important than relaxation. Keiko abruptly changed course, headed for an open area in the forest that she had grown to call home. She had spent many nights and days there training. It was the safest place she knew, and as far as she was concerned, no one knew about it but her.