My guess is that he didn't die and by some logistical mishaps he ended up in the devil's department.
I don't think there's a plot incoherence. I remember it being said in the story that the idol was looking for her missing brother, who they couldn't find after accident. And when they showed the "missing" flyer they used a picture with an estimate of how he's supposed to look in the present. He looked rather handsome, but much more masculine compared to the "doppelganger". So the devil might have seen him and, inspired by the resemblance, made him to look even closer to how the idol looks, therefore more feminine.
I'm assuming they're gonna offer some explanation for how he ended up with the devils, it's just rn my immediate reaction is like "wait that doesn't make sense" lol. Gotta wait and see what happens next yk
The angels aren't even that bad at their jobs, they're just getting in the way of the main couple so people hate them. They're clumsy, sure, but this is also an unusual situation with a lot of unexpected variables that they're having to deal with. Whatever...
Also I hope they explain more about this whole like adopted by the angels thing because it doesn't make sense with the start of the story. Cuz wasn't he just accidentally made to look like the devil's favourite idol? Idk hopefully they give a good explanation for this soon.
Also still annoyed the damn rapist is out and about can someone please kill him already. I honestly expected more from this story after they had the mc getting assaulted earlier and handled it fairly well, but ig I should know by now to not raise my expectations too much.
I've just been a bit annoyed by this story recently because it used to be interesting and decently competent. My only real issue with it before was the amount of sex scenes fucking up the pacing and making weird tone shifts, but now it's like every other chapter something is off. I don't hate it and I'm gonna keep reading it, but idk I feel like the overall writing quality has gotten worse.