The Limit of the Crimson Blade

In Uchiha Meikyō's eyes, everything in the world seemed to have changed. Even without using the Sharingan, he could clearly predict where the fallen leaves in the bamboo grove would drift the next second, what direction the wind would sweep them away in a few seconds later, and see through Akaza's skin to observe the changes in his muscle fibers as they moved, as well as how his heartbeat rapidly pumped blood throughout his body.