Well this is the third mirror match. I think earlier when a picture of all the Purgatory fighters had shown, someone had made educated guesses on who would fight who, and some of these like Medel the boxer, and Toa the giant are giving us really obvious matchups. I'd like to see a little more asymmetry in the matchups though.
Also Julius is hilarious; you can translate what he's saying to him still ignoring technique and concentrating on becoming even more powerful. Never change muscle maniac.
I'm a bit surprised about the ninja going to challenge Kuroki like this. It somewhat shows how similar he is to Rihito. He's also a "wrecker". He's a bit, uh, simple minded (he's intelligent, but kinda silly). He admires Kuroki Gensai. He's still trying to grow even stronger. I'm not sure there was any purpose in getting defeated by Kuroki, and there was really nothing to learn from that exchange. It seems like we'll see him again.