Oh shit, this chapter also explains why Lalo was in Japan coincidentally in the first place when Souichi called him -- he was there to pick up Billy's body and turn it into diamonds.
This is so hype. I wonder if there's another round of crazy mindgames and fighting left between the two of them, except this time they'll be duking it out physically instead of just mentally.
Finally, I wonder if one of the craziest mindgames that has been played on all of us readers this whole time is that Usogui is physically weak. He's acted so this whole time, and let himself be beat up. What if he's been hiding and conserving his strength this whole time and is actually a referee-level beast?
EDIT: Wait, even though referees are not allowed to interfere since they're supposed to be fair arbiters of the match, couldn't Hal/Souichi jump in there and save Baku? Hal is almost certainly stronger than Lalo and there shouldn't be anything in the rules against him helping Baku out, right?