Quite a lot of things going on in this chapter! I don't know if it was just me, but I totally missed the fact that Ranko was surrounded by wax dolls even back in the flashback of her phone call with Leo from a few chapters ago! I suspect that was intentional, which would be an insanely clever and creative use of the fact that we can't (mostly) discern movement in manga panels; it's also really nice foreshadowing and hinting. Another interesting little detail are the scales on Ranko's arms as she puts the black suit on (playing along with her comparison to a snake).
A lot of questions also surfaced due to this chapter, though. Like why exactly are the Wax dolls on the ground and so disheveled? One hypothesis is that Ranko was trying on a few of the doll's suits to see which one would fit her best? Would make sense since they said it was a miracle that they managed to infiltrate the tower so quickly with so much going on (and back then I thought that when Ranko said "we" she wasn't including herself...) so it would be weird for her to already have a suit prepared. Then the suit itself obviously points to Kakerou itself, which would mean she's using it to pass off as a referee in order to gain access to the higher floors more easily without being noticed? Possible. I imagine that Ranko's plan is simply to 1v3 Marco and leave Usogui helpless, but she assumed that there was no way that Usogui had anything prepared for them in advance but recent developments have shown that that's obviously false.
The "50 percent chance of bearing fruit" line makes me wonder what exactly Usogui's plan is... if it were sleeping or poisonous gas then there shouldn't probably involved, right? I suppose the Rodemu!Marco theory is also possible? Although I doubt it a fair bit, since we know since the Minotaur's maze that Marco hasn't gone Rodemu mode since Kaji's casino poker game; Marco now evolved and his new form is some sort of mix between himself and Rodemu's strength? Still unclear on that. The only part that makes me think that it's a possibility that Baku forcefully tried to make Marco go Rage mode is the part where he and Marco and talking and Marco seems very nervous. Although the fact that Marco would also react in a similar way to something like gas or whatnot, and the fact that Marco standing very close to Leo and seemingly fairly relaxed make me think that the Marco Rage theory is very unlikely. Also, since Leo just got off the phone with Ranko and he knows that she's heading (presumably) to support them against Marco he wouldn't be so worried just from seeing Marco's face to the extent of even trying to stop Hyougo, since it's very likely that they could beat Marco 1v3 even if he's enraged. So I'm sticking to the "gas or bomb of some sort" hypothesis for now, although the probability that it's something else entirely is also relatively high.
Very excited! I wonder how many straight releases we're gonna get this time... Keep up the good work Team Duwang!