Tobirama/Kakashi - 9.3
So, no idea where to take this next. It already feels like a different fic with all the sudden action...?? Taking a break. :p
Kakashi despaired as Tobirama shot off with a new burst of speed. It had already taken more out of him than he had to give just to have kept up with the Senju before. Now, he was pushing humself truly beyond his limits and he feared that he would falter any second now and endanger his friend.