Ryuu pouted a little at hearing the words 'Nevertheless, if you can't endure the weight training it will just be a pointless endeavor.' Of course he could, he was a proud Hyūga! In his slight annoyance, he pretended not to be paying attention, although he really was. But when he heard the word spar, his mood brightened again, and he looked eagerly towards one of the Stars, ready to show his proficiency in the bodily arts. He was determined not to tire out during the 3 hours.
And so, they began. They started slowly, with simple punches, kicks and blocks. Being a Hyūga, Ryuu had no trouble dodging the attacks, and the same went for the Rinnegan user. Both sides kept at it. Ryuu tended to use kicks a lot, given that this training was meant for the legs after all. But no matter how hard he worked, he could not land a single blow on the Star. Until finally, he did manage to, as he caught the Star off guard with a low sweep kick, followed by a lunge up and a punch square in the chest. At this, the Star switched out with another one. Around one hour had passed. Ryuu was feeling a little tired by this stage, but he exerted himself more in order to not let it show. However, after some time, it was evident that he was not as fast as he was in the beginning. His reactions were slightly slower, and he even ended up taking a couple of blows, being sent to the floor before he expertly jumped back up as if nothing had happened.
Another hour passed, and the boy, although feeling tired, tried his best to not let it show. And then, another hour after that went as well. By this stage, one would be extremely tired, but Ryuu, who was a Hyūga, and so was used to this level of training, was not so bad looking by the end of it. He stood in front of the row Astra had made, breathing a little heavily, but with a look on his face that said, 'See, told you I could do it!' He then sat himself on the ground, trying to look professional, but in actuality he was trying to get his energy back.