Kobeni panics as Himeno investigate further. Himeno heads downstairs but she comes out from upstairs. Aki enters one of the rooms and discovers that the windows connect to room across the hall. They conclude that this must be the ability of the Devil they are hunting. The character of Kobeni takes precedence in this episode. She’s reveals that she never wanted to be a devil hunter but was forced into it by her own parents. Apparently, her brother is held in higher regard that she, and her parents wanted her to finance his education.
The world in Chainsaw Man isn’t we established yet, but we do know that civilians are directly effect (killed) by Devil. Obviously, the devils themselves are born out of human fears. As a result, Kobeni fear keeps feeding the devil. She also starts to lose her sense of reality blaming Power for creating this situation despite the fact that Power is the Blood Devil. Himeno noted in the last episode that Kobeni is a capable hunter but it’s difficult to imagine how that matters if she can’t get over her own fear.

The eternity devil
The eternity devil bursts into the hallway. A mass of heads, arms, legs, and flesh, the devil demands Denji, dead or alive. Kobeni hearing this slowly walks out of the room armed with a butchers knife. She demands Denji let the eternity devil eat him. Of course this isn’t going to happen but it’s interesting the reason Aki doesn’t want Denji dead. He needs Denji to kill the Gun Devil, which we learned earlier was responsible for killing his father, mother, and brother (and millions).
Another interest thing to note in this episode is Aki’s sword. I assumed that it was just a normal sword but apparently it’s so powerful that it could have ended this dire situation but at the expense of Aki’s well being. With Power’s weirdness, Kobeni and Hirokazu encouraging everyone else to kill Denji, and Himeno’s hesitation Aki get’s stabbed by Kobeni. Denji finally decides to do the “right” thing and “kill himself” by jumping into the eternity devil’s mouth. We know he’s going to survive but I wonder how he’ll kill the devil.