So Denji finally got his dream of "fondling boobs" fulfilled, but it turned out to be an underwhelming experience, because Power stuffs her bra. Almost immediately afterwards, Makima lets him fondle her boob as well, and Denji is so overcome with feeling he collapses.
Makima uses the opportunity of having Denji prostrate to ask him to kill the Gun Devil, promising him the fulfilment of more sexual wishes if he dares to do so.
In a sequence that wasn't explained very well, we see things that look like wet bullets stuck together, and they are part of the Gun Devil, and Public Safety use them to discover a devil nearby in a hotel... is it the Gun Devil? I'm not sure if they said.
Other members of PS are introduced more thoroughly, they were mostly only glimpsed before. There's three of them, but the only one who makes an impression is another girl, who promises either of the boys a kiss on the cheek if they kill the demon.
Interesting that sex, or physical intimacy, is such a motivation for these characters. I hope that's not just a lame joke about teenage boys being so horny, har har.
Himeno, the girl promising the kiss, turns out to have a "contract" with the "Ghost Devil", meaning she is sort of telekinetic, I guess, like using the Force. So Denji isn't the only one with a bond to a devil?