Need to move your body after sleeping so long

After sparring with Leo a few more times, Ren's new set of techniques were becoming sharper, more precise, and were now better suited for battle. Techniques that were only good in theory but were useless in actual battle were discarded, while those that passed the test of battle were better refined. 

The two of them continued to spar with each other for a few more days. Even though Leo's level was far above Ren's and the latter would always lose, Ren's growth was becoming faster and faster. In some of the more recent battles, Leo actually used a bit more of his power. Usually, he would fight Ren on even footing and reduce his power output to the same amount Ren was using, but in some matches, Leo was forced to use a bit more power than he intended which surprised him. That would mean some of Ren's strikes had exceeded Leo's at the same strength.